Type Parameters:: T - component type of this Stream

All Superinterfaces:: Foldable<T>, java.util.function.Function<java.lang.Integer,T>, Function1<java.lang.Integer,T>, java.lang.Iterable<T>, LinearSeq<T>, PartialFunction<java.lang.Integer,T>, Seq<T>, java.io.Serializable, Traversable<T>, Value<T>

All Known Implementing Classes:: Stream.Cons, Stream.Empty, StreamModule.AppendElements, StreamModule.ConsImpl

public interface Stream<T>
extends LinearSeq<T>

An immutable Stream is lazy sequence of elements which may be infinitely long. Its immutability makes it suitable for concurrent programming.

A Stream is composed of a head element and a lazy evaluated tail Stream.

There are two implementations of the Stream interface:

Stream.Empty, which represents the empty Stream.
Stream.Cons, which represents a Stream containing one or more elements.

Methods to obtain a Stream:

 
 // factory methods
 Stream.empty()                  // = Stream.of() = Nil.instance()
 Stream.of(x)                    // = new Cons<>(x, Nil.instance())
 Stream.of(Object...)            // e.g. Stream.of(1, 2, 3)
 Stream.ofAll(Iterable)          // e.g. Stream.ofAll(List.of(1, 2, 3)) = 1, 2, 3
 Stream.ofAll(<primitive array>) // e.g. List.ofAll(1, 2, 3) = 1, 2, 3

 // int sequences
 Stream.from(0)                  // = 0, 1, 2, 3, ...
 Stream.range(0, 3)              // = 0, 1, 2
 Stream.rangeClosed(0, 3)        // = 0, 1, 2, 3

 // generators
 Stream.cons(Object, Supplier)   // e.g. Stream.cons(current, () -> next(current));
 Stream.continually(Supplier)    // e.g. Stream.continually(Math::random);
 Stream.iterate(Object, Function)// e.g. Stream.iterate(1, i -> i * 2);

Factory method applications:

 
 Stream<Integer>       s1 = Stream.of(1);
 Stream<Integer>       s2 = Stream.of(1, 2, 3);
                       // = Stream.of(new Integer[] {1, 2, 3});

 Stream<int[]>         s3 = Stream.ofAll(1, 2, 3);
 Stream<List<Integer>> s4 = Stream.ofAll(List.of(1, 2, 3));

 Stream<Integer>       s5 = Stream.ofAll(1, 2, 3);
 Stream<Integer>       s6 = Stream.ofAll(List.of(1, 2, 3));

 // cuckoo's egg
 Stream<Integer[]>     s7 = Stream.<Integer[]> of(new Integer[] {1, 2, 3});

Example: Generating prime numbers

 
 // = Stream(2L, 3L, 5L, 7L, ...)
 Stream.iterate(2L, PrimeNumbers::nextPrimeFrom)

 // helpers

 static long nextPrimeFrom(long num) {
     return Stream.from(num + 1).find(PrimeNumbers::isPrime).get();
 }

 static boolean isPrime(long num) {
     return !Stream.rangeClosed(2L, (long) Math.sqrt(num)).exists(d -> num % d == 0);
 }

See Okasaki, Chris: Purely Functional Data Structures (p. 34 ff.). Cambridge, 2003.

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static class Stream.Cons<T>
Non-empty Stream, consisting of a head, and tail.

static class Stream.Empty<T>
The empty Stream.

Field Summary

Fields
Modifier and Type Field Description

static long serialVersionUID

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Default Methods Deprecated Methods
Modifier and Type	Method	Description
`default Stream<T>`	`append(T element)`	Appends an element to this.
`default Stream<T>`	`appendAll(java.lang.Iterable<? extends T> elements)`	Appends all given elements to this.
`default Stream<T>`	`appendSelf(java.util.function.Function<? super Stream<T>,? extends Stream<T>> mapper)`	Appends itself to the end of stream with `mapper` function.
`default java.util.List<T>`	`asJava()`	Creates an immutable `List` view on top of this `Seq`, i.e.
`default Stream<T>`	`asJava(java.util.function.Consumer<? super java.util.List<T>> action)`	Creates an immutable `List` view on top of this `Seq` that is passed to the given `action`.
`default java.util.List<T>`	`asJavaMutable()`	Creates a mutable `List` view on top of this `Seq`, i.e.
`default Stream<T>`	`asJavaMutable(java.util.function.Consumer<? super java.util.List<T>> action)`	Creates a mutable `List` view on top of this `Seq` that is passed to the given `action`.
`default <R> Stream<R>`	`collect(PartialFunction<? super T,? extends R> partialFunction)`	Collects all elements that are in the domain of the given `partialFunction` by mapping the elements to type `R`.
`static <T> java.util.stream.Collector<T,java.util.ArrayList<T>,Stream<T>>`	`collector()`	Returns a `Collector` which may be used in conjunction with `Stream.collect(java.util.stream.Collector)` to obtain a `Stream`.
`default Stream<Stream<T>>`	`combinations()`	Returns the union of all combinations from k = 0 to length().
`default Stream<Stream<T>>`	`combinations(int k)`	Returns the k-combination of this traversable, i.e.
`static <T> Stream<T>`	`concat(java.lang.Iterable<? extends java.lang.Iterable<? extends T>> iterables)`	Lazily creates a Stream in O(1) which traverses along the concatenation of the given iterables.
`static <T> Stream<T>`	`concat(java.lang.Iterable<? extends T>... iterables)`	Lazily creates a Stream in O(1) which traverses along the concatenation of the given iterables.
`static <T> Stream<T>`	`cons(T head, java.util.function.Supplier<? extends Stream<? extends T>> tailSupplier)`	Constructs a Stream of a head element and a tail supplier.
`static <T> Stream<T>`	`continually(java.util.function.Supplier<? extends T> supplier)`	Generates an (theoretically) infinitely long Stream using a value Supplier.
`static <T> Stream<T>`	`continually(T t)`	Repeats an element infinitely often.
`default Iterator<Stream<T>>`	`crossProduct(int power)`	Calculates the n-ary cartesian power (or cross product or simply product) of this.
`default Stream<T>`	`cycle()`	Repeat the elements of this Stream infinitely.
`default Stream<T>`	`cycle(int count)`	Repeat the elements of this Stream `count` times.
`default Stream<T>`	`distinct()`	Returns a new version of this which contains no duplicates.
`default Stream<T>`	`distinctBy(java.util.Comparator<? super T> comparator)`	Returns a new version of this which contains no duplicates.
`default <U> Stream<T>`	`distinctBy(java.util.function.Function<? super T,? extends U> keyExtractor)`	Returns a new version of this which contains no duplicates.
`default Stream<T>`	`drop(int n)`	Drops the first n elements of this or all elements, if this length < n.
`default Stream<T>`	`dropRight(int n)`	Drops the last n elements of this or all elements, if this length < n.
`default Stream<T>`	`dropRightUntil(java.util.function.Predicate<? super T> predicate)`	Drops elements until the predicate holds for the current element, starting from the end.
`default Stream<T>`	`dropRightWhile(java.util.function.Predicate<? super T> predicate)`	Drops elements while the predicate holds for the current element, starting from the end.
`default Stream<T>`	`dropUntil(java.util.function.Predicate<? super T> predicate)`	Drops elements until the predicate holds for the current element.
`default Stream<T>`	`dropWhile(java.util.function.Predicate<? super T> predicate)`	Drops elements while the predicate holds for the current element.
`static <T> Stream<T>`	`empty()`	Returns the single instance of Nil.
`default Stream<T>`	`extend(java.util.function.Function<? super T,? extends T> nextFunction)`	Extends (continues) this `Stream` with a Stream of values created by applying consecutively provided `Function` to the last element of the original Stream.
`default Stream<T>`	`extend(java.util.function.Supplier<? extends T> nextSupplier)`	Extends (continues) this `Stream` with values provided by a `Supplier`
`default Stream<T>`	`extend(T next)`	Extends (continues) this `Stream` with a constantly repeated value.
`static <T> Stream<T>`	`fill(int n, java.util.function.Supplier<? extends T> s)`	Returns a Stream containing `n` values supplied by a given Supplier `s`.
`static <T> Stream<T>`	`fill(int n, T element)`	Returns a Stream containing `n` times the given `element`
`default Stream<T>`	`filter(java.util.function.Predicate<? super T> predicate)`	Returns a new traversable consisting of all elements which satisfy the given predicate.
`default <U> Stream<U>`	`flatMap(java.util.function.Function<? super T,? extends java.lang.Iterable<? extends U>> mapper)`	FlatMaps this Traversable.
`static Stream<java.lang.Integer>`	`from(int value)`	Returns an infinitely long Stream of `int` values starting from `from`.
`static Stream<java.lang.Integer>`	`from(int value, int step)`	Returns an infinite long Stream of `int` values starting from `value` and spaced by `step`.
`static Stream<java.lang.Long>`	`from(long value)`	Returns an infinitely long Stream of `long` values starting from `from`.
`static Stream<java.lang.Long>`	`from(long value, long step)`	Returns an infinite long Stream of `long` values starting from `value` and spaced by `step`.
`default T`	`get(int index)`	Returns the element at the specified index.
`default <C> Map<C,Stream<T>>`	`groupBy(java.util.function.Function<? super T,? extends C> classifier)`	Groups this elements by classifying the elements.
`default Iterator<Stream<T>>`	`grouped(int size)`	Groups this `Traversable` into fixed size blocks.
`default boolean`	`hasDefiniteSize()`	Checks if this Traversable is known to have a finite size.
`default int`	`indexOf(T element, int from)`	Returns the index of the first occurrence of the given element after or at some start index or -1 if this does not contain the given element.
`default Stream<T>`	`init()`	Dual of Traversable.tail(), returning all elements except the last.
`default Option<Stream<T>>`	`initOption()`	Dual of Traversable.tailOption(), returning all elements except the last as `Option`.
`default Stream<T>`	`insert(int index, T element)`	Inserts the given element at the specified index.
`default Stream<T>`	`insertAll(int index, java.lang.Iterable<? extends T> elements)`	Inserts the given elements at the specified index.
`default Stream<T>`	`intersperse(T element)`	Inserts an element between all elements of this Traversable.
`default boolean`	`isAsync()`	A `Stream` is computed synchronously.
`default boolean`	`isLazy()`	A `Stream` is computed lazily.
`default boolean`	`isTraversableAgain()`	Checks if this Traversable can be repeatedly traversed.
`static <T> Stream<T>`	`iterate(java.util.function.Supplier<? extends Option<? extends T>> supplier)`	Generates a (theoretically) infinitely long Stream using a repeatedly invoked supplier that provides a `Some` for each next value and a `None` for the end.
`static <T> Stream<T>`	`iterate(T seed, java.util.function.Function<? super T,? extends T> f)`	Generates a (theoretically) infinitely long Stream using a function to calculate the next value based on the previous.
`default T`	`last()`	Dual of Traversable.head(), returning the last element.
`default int`	`lastIndexOf(T element, int end)`	Returns the index of the last occurrence of the given element before or at a given end index or -1 if this does not contain the given element.
`default Stream<T>`	`leftPadTo(int length, T element)`	A copy of this sequence with an element prepended until a given target length is reached.
`default int`	`length()`	Computes the number of elements of this Traversable.
`default <U> Stream<U>`	`map(java.util.function.Function<? super T,? extends U> mapper)`	Maps the elements of this `Traversable` to elements of a new type preserving their order, if any.
`static <T> Stream<T>`	`narrow(Stream<? extends T> stream)`	Narrows a widened `Stream<? extends T>` to `Stream<T>` by performing a type-safe cast.
`static <T> Stream<T>`	`of(T element)`	Returns a singleton `Stream`, i.e.
`static <T> Stream<T>`	`of(T... elements)`	Creates a Stream of the given elements.
`static Stream<java.lang.Boolean>`	`ofAll(boolean... elements)`	Creates a Stream from boolean values.
`static Stream<java.lang.Byte>`	`ofAll(byte... elements)`	Creates a Stream from byte values.
`static Stream<java.lang.Character>`	`ofAll(char... elements)`	Creates a Stream from char values.
`static Stream<java.lang.Double>`	`ofAll(double... elements)`	Creates a Stream values double values.
`static Stream<java.lang.Float>`	`ofAll(float... elements)`	Creates a Stream from float values.
`static Stream<java.lang.Integer>`	`ofAll(int... elements)`	Creates a Stream from int values.
`static Stream<java.lang.Long>`	`ofAll(long... elements)`	Creates a Stream from long values.
`static Stream<java.lang.Short>`	`ofAll(short... elements)`	Creates a Stream from short values.
`static <T> Stream<T>`	`ofAll(java.lang.Iterable<? extends T> elements)`	Creates a Stream of the given elements.
`static <T> Stream<T>`	`ofAll(java.util.stream.Stream<? extends T> javaStream)`	Creates a Stream that contains the elements of the given `Stream`.
`default Stream<T>`	`orElse(java.lang.Iterable<? extends T> other)`	Returns this `Traversable` if it is nonempty, otherwise return the alternative.
`default Stream<T>`	`orElse(java.util.function.Supplier<? extends java.lang.Iterable<? extends T>> supplier)`	Returns this `Traversable` if it is nonempty, otherwise return the result of evaluating supplier.
`default Stream<T>`	`padTo(int length, T element)`	A copy of this sequence with an element appended until a given target length is reached.
`default Tuple2<Stream<T>,Stream<T>>`	`partition(java.util.function.Predicate<? super T> predicate)`	Creates a partition of this `Traversable` by splitting this elements in two in distinct traversables according to a predicate.
`default Stream<T>`	`patch(int from, java.lang.Iterable<? extends T> that, int replaced)`	Produces a new list where a slice of elements in this list is replaced by another sequence.
`default Stream<T>`	`peek(java.util.function.Consumer<? super T> action)`	Performs the given `action` on the first element if this is an eager implementation.
`default Stream<Stream<T>>`	`permutations()`	Computes all unique permutations.
`default Stream<T>`	`prepend(T element)`	Prepends an element to this.
`default Stream<T>`	`prependAll(java.lang.Iterable<? extends T> elements)`	Prepends all given elements to this.
`static Stream<java.lang.Character>`	`range(char from, char toExclusive)`
`static Stream<java.lang.Integer>`	`range(int from, int toExclusive)`	Creates a Stream of int numbers starting from `from`, extending to `toExclusive - 1`.
`static Stream<java.lang.Long>`	`range(long from, long toExclusive)`	Creates a Stream of long numbers starting from `from`, extending to `toExclusive - 1`.
`static Stream<java.lang.Character>`	`rangeBy(char from, char toExclusive, int step)`
`static Stream<java.lang.Double>`	`rangeBy(double from, double toExclusive, double step)`
`static Stream<java.lang.Integer>`	`rangeBy(int from, int toExclusive, int step)`	Creates a Stream of int numbers starting from `from`, extending to `toExclusive - 1`, with `step`.
`static Stream<java.lang.Long>`	`rangeBy(long from, long toExclusive, long step)`	Creates a Stream of long numbers starting from `from`, extending to `toExclusive - 1`, with `step`.
`static Stream<java.lang.Character>`	`rangeClosed(char from, char toInclusive)`
`static Stream<java.lang.Integer>`	`rangeClosed(int from, int toInclusive)`	Creates a Stream of int numbers starting from `from`, extending to `toInclusive`.
`static Stream<java.lang.Long>`	`rangeClosed(long from, long toInclusive)`	Creates a Stream of long numbers starting from `from`, extending to `toInclusive`.
`static Stream<java.lang.Character>`	`rangeClosedBy(char from, char toInclusive, int step)`
`static Stream<java.lang.Double>`	`rangeClosedBy(double from, double toInclusive, double step)`
`static Stream<java.lang.Integer>`	`rangeClosedBy(int from, int toInclusive, int step)`	Creates a Stream of int numbers starting from `from`, extending to `toInclusive`, with `step`.
`static Stream<java.lang.Long>`	`rangeClosedBy(long from, long toInclusive, long step)`	Creates a Stream of long numbers starting from `from`, extending to `toInclusive`, with `step`.
`default Stream<T>`	`reject(java.util.function.Predicate<? super T> predicate)`	Returns a new traversable consisting of all elements which do not satisfy the given predicate.
`default Stream<T>`	`remove(T element)`	Removes the first occurrence of the given element.
`default Stream<T>`	`removeAll(java.lang.Iterable<? extends T> elements)`	Removes all occurrences of the given elements.
`default Stream<T>`	`removeAll(java.util.function.Predicate<? super T> predicate)`	Deprecated.
`default Stream<T>`	`removeAll(T element)`	Removes all occurrences of the given element.
`default Stream<T>`	`removeAt(int index)`	Removes the element at the specified position in this sequence.
`default Stream<T>`	`removeFirst(java.util.function.Predicate<T> predicate)`	Removes the first occurrence that satisfy predicate
`default Stream<T>`	`removeLast(java.util.function.Predicate<T> predicate)`	Removes the last occurrence that satisfy predicate
`default Stream<T>`	`replace(T currentElement, T newElement)`	Replaces the first occurrence (if exists) of the given currentElement with newElement.
`default Stream<T>`	`replaceAll(T currentElement, T newElement)`	Replaces all occurrences of the given currentElement with newElement.
`default Stream<T>`	`retainAll(java.lang.Iterable<? extends T> elements)`	Keeps all occurrences of the given elements from this.
`default Stream<T>`	`reverse()`	Reverses the order of elements.
`default Stream<T>`	`rotateLeft(int n)`	Circular rotates the elements by the specified distance to the left direction.
`default Stream<T>`	`rotateRight(int n)`	Circular rotates the elements by the specified distance to the right direction.
`default Stream<T>`	`scan(T zero, java.util.function.BiFunction<? super T,? super T,? extends T> operation)`	Computes a prefix scan of the elements of the collection.
`default <U> Stream<U>`	`scanLeft(U zero, java.util.function.BiFunction<? super U,? super T,? extends U> operation)`	Produces a collection containing cumulative results of applying the operator going left to right.
`default <U> Stream<U>`	`scanRight(U zero, java.util.function.BiFunction<? super T,? super U,? extends U> operation)`	Produces a collection containing cumulative results of applying the operator going right to left.
`default Stream<T>`	`shuffle()`	Randomize the order of the elements in the current sequence.
`default Stream<T>`	`slice(int beginIndex, int endIndex)`	Returns a Seq that is a slice of this.
`default Iterator<Stream<T>>`	`slideBy(java.util.function.Function<? super T,?> classifier)`	Slides a non-overlapping window of a variable size over this `Traversable`.
`default Iterator<Stream<T>>`	`sliding(int size)`	Slides a window of a specific `size` and step size 1 over this `Traversable` by calling `Traversable.sliding(int, int)`.
`default Iterator<Stream<T>>`	`sliding(int size, int step)`	Slides a window of a specific `size` and `step` size over this `Traversable`.
`default <U> Stream<T>`	`sortBy(java.util.Comparator<? super U> comparator, java.util.function.Function<? super T,? extends U> mapper)`	Sorts this elements by comparing the elements in a different domain, using the given `mapper`.
`default <U extends java.lang.Comparable<? super U>> Stream<T>`	`sortBy(java.util.function.Function<? super T,? extends U> mapper)`	Sorts this elements by comparing the elements in a different domain, using the given `mapper`.
`default Stream<T>`	`sorted()`	Sorts this elements according to their natural order.
`default Stream<T>`	`sorted(java.util.Comparator<? super T> comparator)`	Sorts this elements according to the provided `Comparator`.
`default Tuple2<Stream<T>,Stream<T>>`	`span(java.util.function.Predicate<? super T> predicate)`	Returns a tuple where the first element is the longest prefix of elements that satisfy the given `predicate` and the second element is the remainder.
`default Tuple2<Stream<T>,Stream<T>>`	`splitAt(int n)`	Splits a Seq at the specified index.
`default Tuple2<Stream<T>,Stream<T>>`	`splitAt(java.util.function.Predicate<? super T> predicate)`	Splits a sequence at the first element which satisfies the `Predicate`, e.g.
`default Tuple2<Stream<T>,Stream<T>>`	`splitAtInclusive(java.util.function.Predicate<? super T> predicate)`	Splits a sequence at the first element which satisfies the `Predicate`, e.g.
`default java.lang.String`	`stringPrefix()`	Returns the name of this Value type, which is used by toString().
`default Stream<T>`	`subSequence(int beginIndex)`	Returns a Seq that is a subsequence of this.
`default Stream<T>`	`subSequence(int beginIndex, int endIndex)`	Returns a Seq that is a subsequence of this.
`static <T> Stream<T>`	`tabulate(int n, java.util.function.Function<? super java.lang.Integer,? extends T> f)`	Returns a Stream containing `n` values of a given Function `f` over a range of integer values from 0 to `n - 1`.
`Stream<T>`	`tail()`	Drops the first element of a non-empty Traversable.
`default Option<Stream<T>>`	`tailOption()`	Drops the first element of a non-empty Traversable and returns an `Option`.
`default Stream<T>`	`take(int n)`	Takes the first n elements of this or all elements, if this length < n.
`default Stream<T>`	`takeRight(int n)`	Takes the last n elements of this or all elements, if this length < n.
`default Stream<T>`	`takeRightUntil(java.util.function.Predicate<? super T> predicate)`	Takes elements until the predicate holds for the current element, starting from the end.
`default Stream<T>`	`takeRightWhile(java.util.function.Predicate<? super T> predicate)`	Takes elements while the predicate holds for the current element, starting from the end.
`default Stream<T>`	`takeUntil(java.util.function.Predicate<? super T> predicate)`	Takes elements until the predicate holds for the current element.
`default Stream<T>`	`takeWhile(java.util.function.Predicate<? super T> predicate)`	Takes elements while the predicate holds for the current element.
`default <U> U`	`transform(java.util.function.Function<? super Stream<T>,? extends U> f)`	Transforms this `Stream`.
`static <T> Stream<Stream<T>>`	`transpose(Stream<Stream<T>> matrix)`	Transposes the rows and columns of a `Stream` matrix.
`static <T> Stream<T>`	`unfold(T seed, java.util.function.Function<? super T,Option<Tuple2<? extends T,? extends T>>> f)`	Creates a Stream from a seed value and a function.
`static <T,U> Stream<U>`	`unfoldLeft(T seed, java.util.function.Function<? super T,Option<Tuple2<? extends T,? extends U>>> f)`	Creates a Stream from a seed value and a function.
`static <T,U> Stream<U>`	`unfoldRight(T seed, java.util.function.Function<? super T,Option<Tuple2<? extends U,? extends T>>> f)`	Creates a Stream from a seed value and a function.
`default <T1,T2> Tuple2<Stream<T1>,Stream<T2>>`	`unzip(java.util.function.Function<? super T,Tuple2<? extends T1,? extends T2>> unzipper)`	Unzips this elements by mapping this elements to pairs which are subsequently split into two distinct sets.
`default <T1,T2,T3> Tuple3<Stream<T1>,Stream<T2>,Stream<T3>>`	`unzip3(java.util.function.Function<? super T,Tuple3<? extends T1,? extends T2,? extends T3>> unzipper)`	Unzips this elements by mapping this elements to triples which are subsequently split into three distinct sets.
`default Stream<T>`	`update(int index, java.util.function.Function<? super T,? extends T> updater)`	Updates the given element at the specified index using the specified function.
`default Stream<T>`	`update(int index, T element)`	Updates the given element at the specified index.
`default <U> Stream<Tuple2<T,U>>`	`zip(java.lang.Iterable<? extends U> that)`	Returns a traversable formed from this traversable and another Iterable collection by combining corresponding elements in pairs.
`default <U> Stream<Tuple2<T,U>>`	`zipAll(java.lang.Iterable<? extends U> iterable, T thisElem, U thatElem)`	Returns a traversable formed from this traversable and another Iterable by combining corresponding elements in pairs.
`default <U,R> Stream<R>`	`zipWith(java.lang.Iterable<? extends U> that, java.util.function.BiFunction<? super T,? super U,? extends R> mapper)`	Returns a traversable formed from this traversable and another Iterable collection by mapping elements.
`default Stream<Tuple2<T,java.lang.Integer>>`	`zipWithIndex()`	Zips this traversable with its indices.
`default <U> Stream<U>`	`zipWithIndex(java.util.function.BiFunction<? super T,? super java.lang.Integer,? extends U> mapper)`	Zips this traversable with its indices by applying mapper provided.

Methods inherited from interface io.vavr.collection.Foldable
fold, reduce, reduceOption

Methods inherited from interface io.vavr.Function1
andThen, arity, compose, curried, isMemoized, memoized, partial, reversed, tupled

Methods inherited from interface io.vavr.collection.LinearSeq
asPartialFunction, indexOfSlice, indexWhere, isDefinedAt, lastIndexOfSlice, lastIndexWhere, reverseIterator, search, search, segmentLength

Methods inherited from interface io.vavr.collection.Seq
apply, containsSlice, crossProduct, crossProduct, endsWith, foldRight, indexOf, indexOfOption, indexOfOption, indexOfSlice, indexOfSliceOption, indexOfSliceOption, indexWhere, indexWhereOption, indexWhereOption, isSequential, iterator, lastIndexOf, lastIndexOfOption, lastIndexOfOption, lastIndexOfSlice, lastIndexOfSliceOption, lastIndexOfSliceOption, lastIndexWhere, lastIndexWhereOption, lastIndexWhereOption, lift, prefixLength, startsWith, startsWith, withDefault, withDefaultValue

Methods inherited from interface io.vavr.collection.Traversable
arrangeBy, average, containsAll, count, equals, existsUnique, find, findLast, foldLeft, forEachWithIndex, get, hashCode, head, headOption, isDistinct, isEmpty, isOrdered, isSingleValued, iterator, lastOption, max, maxBy, maxBy, min, minBy, minBy, mkCharSeq, mkCharSeq, mkCharSeq, mkString, mkString, mkString, nonEmpty, product, reduceLeft, reduceLeftOption, reduceRight, reduceRightOption, single, singleOption, size, spliterator, sum

Methods inherited from interface io.vavr.Value
collect, collect, contains, corresponds, eq, exists, forAll, forEach, getOrElse, getOrElse, getOrElseThrow, getOrElseTry, getOrNull, out, out, stderr, stdout, toArray, toCharSeq, toCompletableFuture, toEither, toEither, toInvalid, toInvalid, toJavaArray, toJavaArray, toJavaArray, toJavaCollection, toJavaList, toJavaList, toJavaMap, toJavaMap, toJavaMap, toJavaOptional, toJavaParallelStream, toJavaSet, toJavaSet, toJavaStream, toLeft, toLeft, toLinkedMap, toLinkedMap, toLinkedSet, toList, toMap, toMap, toOption, toPriorityQueue, toPriorityQueue, toQueue, toRight, toRight, toSet, toSortedMap, toSortedMap, toSortedMap, toSortedMap, toSortedSet, toSortedSet, toStream, toString, toTree, toTree, toTry, toTry, toValid, toValid, toValidation, toValidation, toVector

- Field Detail
 - serialVersionUID
```
static final long serialVersionUID
```
 See Also:
 
 Constant Field Values
- Method Detail
 - collector
```
static <T> java.util.stream.Collector<T,java.util.ArrayList<T>,Stream<T>> collector()
```
 Returns a Collector which may be used in conjunction with Stream.collect(java.util.stream.Collector) to obtain a Stream.
 
 Type Parameters:
 
 T - Component type of the Stream.
 
 Returns:
 
 A io.vavr.collection.Stream Collector.
 - concat
```
@SafeVarargs
static <T> Stream<T> concat(java.lang.Iterable<? extends T>... iterables)
```
 Lazily creates a Stream in O(1) which traverses along the concatenation of the given iterables.
 
 Type Parameters:
 
 T - Component type.
 
 Parameters:
 
 iterables - The iterables
 
 Returns:
 
 A new Stream
 - concat
```
static <T> Stream<T> concat(java.lang.Iterable<? extends java.lang.Iterable<? extends T>> iterables)
```
 Lazily creates a Stream in O(1) which traverses along the concatenation of the given iterables.
 
 Type Parameters:
 
 T - Component type.
 
 Parameters:
 
 iterables - The iterable of iterables
 
 Returns:
 
 A new Stream
 - from
```
static Stream<java.lang.Integer> from(int value)
```
 Returns an infinitely long Stream of int values starting from from.
 The Stream extends to Integer.MIN_VALUE when passing Integer.MAX_VALUE.
 
 Parameters:
 
 value - a start int value
 
 Returns:
 
 a new Stream of int values starting from from
 - from
```
static Stream<java.lang.Integer> from(int value,
 int step)
```
 Returns an infinite long Stream of int values starting from value and spaced by step.
 The Stream extends to Integer.MIN_VALUE when passing Integer.MAX_VALUE.
 
 Parameters:
 
 value - a start int value
 
 step - the step by which to advance on each next value
 
 Returns:
 
 a new Stream of int values starting from from
 - from
```
static Stream<java.lang.Long> from(long value)
```
 Returns an infinitely long Stream of long values starting from from.
 The Stream extends to Integer.MIN_VALUE when passing Long.MAX_VALUE.
 
 Parameters:
 
 value - a start long value
 
 Returns:
 
 a new Stream of long values starting from from
 - from
```
static Stream<java.lang.Long> from(long value,
 long step)
```
 Returns an infinite long Stream of long values starting from value and spaced by step.
 The Stream extends to Long.MIN_VALUE when passing Long.MAX_VALUE.
 
 Parameters:
 
 value - a start long value
 
 step - the step by which to advance on each next value
 
 Returns:
 
 a new Stream of long values starting from from
 - continually
```
static <T> Stream<T> continually(java.util.function.Supplier<? extends T> supplier)
```
 Generates an (theoretically) infinitely long Stream using a value Supplier.
 
 Type Parameters:
 
 T - value type
 
 Parameters:
 
 supplier - A Supplier of Stream values
 
 Returns:
 
 A new Stream
 - iterate
```
static <T> Stream<T> iterate(T seed,
 java.util.function.Function<? super T,? extends T> f)
```
 Generates a (theoretically) infinitely long Stream using a function to calculate the next value based on the previous.
 
 Type Parameters:
 
 T - value type
 
 Parameters:
 
 seed - The first value in the Stream
 
 f - A function to calculate the next value based on the previous
 
 Returns:
 
 A new Stream
 - iterate
```
static <T> Stream<T> iterate(java.util.function.Supplier<? extends Option<? extends T>> supplier)
```
 Generates a (theoretically) infinitely long Stream using a repeatedly invoked supplier that provides a Some for each next value and a None for the end. The Supplier will be invoked only that many times until it returns None, and repeated iteration over the stream will produce the same values in the same order, without any further invocations to the Supplier.
 
 Type Parameters:
 
 T - value type
 
 Parameters:
 
 supplier - A Supplier of iterator values
 
 Returns:
 
 A new Stream
 - cons
```
static <T> Stream<T> cons(T head,
 java.util.function.Supplier<? extends Stream<? extends T>> tailSupplier)
```
 Constructs a Stream of a head element and a tail supplier.
 
 Type Parameters:
 
 T - value type
 
 Parameters:
 
 head - The head element of the Stream
 
 tailSupplier - A supplier of the tail values. To end the stream, return empty().
 
 Returns:
 
 A new Stream
 - empty
```
static <T> Stream<T> empty()
```
 Returns the single instance of Nil. Convenience method for Nil.instance().
 Note: this method intentionally returns type Stream and not Nil. This comes handy when folding. If you explicitly need type Nil use Stream.Empty.instance().
 
 Type Parameters:
 
 T - Component type of Nil, determined by type inference in the particular context.
 
 Returns:
 
 The empty list.
 - narrow
```
static <T> Stream<T> narrow(Stream<? extends T> stream)
```
 Narrows a widened Stream<? extends T> to Stream<T> by performing a type-safe cast. This is eligible because immutable/read-only collections are covariant.
 
 Type Parameters:
 
 T - Component type of the Stream.
 
 Parameters:
 
 stream - A Stream.
 
 Returns:
 
 the given stream instance as narrowed type Stream<T>.
 - of
```
static <T> Stream<T> of(T element)
```
 Returns a singleton Stream, i.e. a Stream of one element.
 
 Type Parameters:
 
 T - The component type
 
 Parameters:
 
 element - An element.
 
 Returns:
 
 A new Stream instance containing the given element
 - of
```
@SafeVarargs
static <T> Stream<T> of(T... elements)
```
 Creates a Stream of the given elements.
 Stream.of(1, 2, 3, 4) = Nil.instance().prepend(4).prepend(3).prepend(2).prepend(1) = new Cons(1, new Cons(2, new Cons(3, new Cons(4, Nil.instance()))))
 Type Parameters:
 
 T - Component type of the Stream.
 
 Parameters:
 
 elements - Zero or more elements.
 
 Returns:
 
 A list containing the given elements in the same order.
 - tabulate
```
static <T> Stream<T> tabulate(int n,
 java.util.function.Function<? super java.lang.Integer,? extends T> f)
```
 Returns a Stream containing n values of a given Function f over a range of integer values from 0 to n - 1.
 
 Type Parameters:
 
 T - Component type of the Stream
 
 Parameters:
 
 n - The number of elements in the Stream
 
 f - The Function computing element values
 
 Returns:
 
 A Stream consisting of elements f(0),f(1), ..., f(n - 1)
 
 Throws:
 
 java.lang.NullPointerException - if f is null
 - fill
```
static <T> Stream<T> fill(int n,
 java.util.function.Supplier<? extends T> s)
```
 Returns a Stream containing n values supplied by a given Supplier s.
 
 Type Parameters:
 
 T - Component type of the Stream
 
 Parameters:
 
 n - The number of elements in the Stream
 
 s - The Supplier computing element values
 
 Returns:
 
 A Stream of size n, where each element contains the result supplied by s.
 
 Throws:
 
 java.lang.NullPointerException - if s is null
 - fill
```
static <T> Stream<T> fill(int n,
 T element)
```
 Returns a Stream containing n times the given element
 
 Type Parameters:
 
 T - Component type of the Stream
 
 Parameters:
 
 n - The number of elements in the Stream
 
 element - The element
 
 Returns:
 
 A Stream of size n, where each element is the given element.
 - ofAll
```
static <T> Stream<T> ofAll(java.lang.Iterable<? extends T> elements)
```
 Creates a Stream of the given elements.
 
 Type Parameters:
 
 T - Component type of the Stream.
 
 Parameters:
 
 elements - An Iterable of elements.
 
 Returns:
 
 A Stream containing the given elements in the same order.
 - ofAll
```
static <T> Stream<T> ofAll(java.util.stream.Stream<? extends T> javaStream)
```
 Creates a Stream that contains the elements of the given Stream.
 
 Type Parameters:
 
 T - Component type of the Stream.
 
 Parameters:
 
 javaStream - A Stream
 
 Returns:
 
 A Stream containing the given elements in the same order.
 - ofAll
```
static Stream<java.lang.Boolean> ofAll(boolean... elements)
```
 Creates a Stream from boolean values.
 
 Parameters:
 
 elements - boolean values
 
 Returns:
 
 A new Stream of Boolean values
 
 Throws:
 
 java.lang.NullPointerException - if elements is null
 - ofAll
```
static Stream<java.lang.Byte> ofAll(byte... elements)
```
 Creates a Stream from byte values.
 
 Parameters:
 
 elements - byte values
 
 Returns:
 
 A new Stream of Byte values
 
 Throws:
 
 java.lang.NullPointerException - if elements is null
 - ofAll
```
static Stream<java.lang.Character> ofAll(char... elements)
```
 Creates a Stream from char values.
 
 Parameters:
 
 elements - char values
 
 Returns:
 
 A new Stream of Character values
 
 Throws:
 
 java.lang.NullPointerException - if elements is null
 - ofAll
```
static Stream<java.lang.Double> ofAll(double... elements)
```
 Creates a Stream values double values.
 
 Parameters:
 
 elements - double values
 
 Returns:
 
 A new Stream of Double values
 
 Throws:
 
 java.lang.NullPointerException - if elements is null
 - ofAll
```
static Stream<java.lang.Float> ofAll(float... elements)
```
 Creates a Stream from float values.
 
 Parameters:
 
 elements - float values
 
 Returns:
 
 A new Stream of Float values
 
 Throws:
 
 java.lang.NullPointerException - if elements is null
 - ofAll
```
static Stream<java.lang.Integer> ofAll(int... elements)
```
 Creates a Stream from int values.
 
 Parameters:
 
 elements - int values
 
 Returns:
 
 A new Stream of Integer values
 
 Throws:
 
 java.lang.NullPointerException - if elements is null
 - ofAll
```
static Stream<java.lang.Long> ofAll(long... elements)
```
 Creates a Stream from long values.
 
 Parameters:
 
 elements - long values
 
 Returns:
 
 A new Stream of Long values
 
 Throws:
 
 java.lang.NullPointerException - if elements is null
 - ofAll
```
static Stream<java.lang.Short> ofAll(short... elements)
```
 Creates a Stream from short values.
 
 Parameters:
 
 elements - short values
 
 Returns:
 
 A new Stream of Short values
 
 Throws:
 
 java.lang.NullPointerException - if elements is null
 - range
```
static Stream<java.lang.Character> range(char from,
 char toExclusive)
```
 - rangeBy
```
static Stream<java.lang.Character> rangeBy(char from,
 char toExclusive,
 int step)
```
 - rangeBy
```
@GwtIncompatible
static Stream<java.lang.Double> rangeBy(double from,
 double toExclusive,
 double step)
```
 - range
```
static Stream<java.lang.Integer> range(int from,
 int toExclusive)
```
 Creates a Stream of int numbers starting from from, extending to toExclusive - 1.
 Examples:
 Stream.range(0, 0) // = Stream() Stream.range(2, 0) // = Stream() Stream.range(-2, 2) // = Stream(-2, -1, 0, 1)
 Parameters:
 
 from - the first number
 
 toExclusive - the last number + 1
 
 Returns:
 
 a range of int values as specified or Nil if from >= toExclusive
 - rangeBy
```
static Stream<java.lang.Integer> rangeBy(int from,
 int toExclusive,
 int step)
```
 Creates a Stream of int numbers starting from from, extending to toExclusive - 1, with step.
 Examples:
 Stream.rangeBy(1, 3, 1) // = Stream(1, 2) Stream.rangeBy(1, 4, 2) // = Stream(1, 3) Stream.rangeBy(4, 1, -2) // = Stream(4, 2) Stream.rangeBy(4, 1, 2) // = Stream()
 Parameters:
 
 from - the first number
 
 toExclusive - the last number + 1
 
 step - the step
 
 Returns:
 
 a range of long values as specified or Nil if
 from >= toInclusive and step > 0 or
 from <= toInclusive and step < 0
 
 Throws:
 
 java.lang.IllegalArgumentException - if step is zero
 - range
```
static Stream<java.lang.Long> range(long from,
 long toExclusive)
```
 Creates a Stream of long numbers starting from from, extending to toExclusive - 1.
 Examples:
 Stream.range(0L, 0L) // = Stream() Stream.range(2L, 0L) // = Stream() Stream.range(-2L, 2L) // = Stream(-2L, -1L, 0L, 1L)
 Parameters:
 
 from - the first number
 
 toExclusive - the last number + 1
 
 Returns:
 
 a range of long values as specified or Nil if from >= toExclusive
 - rangeBy
```
static Stream<java.lang.Long> rangeBy(long from,
 long toExclusive,
 long step)
```
 Creates a Stream of long numbers starting from from, extending to toExclusive - 1, with step.
 Examples:
 Stream.rangeBy(1L, 3L, 1L) // = Stream(1L, 2L) Stream.rangeBy(1L, 4L, 2L) // = Stream(1L, 3L) Stream.rangeBy(4L, 1L, -2L) // = Stream(4L, 2L) Stream.rangeBy(4L, 1L, 2L) // = Stream()
 Parameters:
 
 from - the first number
 
 toExclusive - the last number + 1
 
 step - the step
 
 Returns:
 
 a range of long values as specified or Nil if
 from >= toInclusive and step > 0 or
 from <= toInclusive and step < 0
 
 Throws:
 
 java.lang.IllegalArgumentException - if step is zero
 - rangeClosed
```
static Stream<java.lang.Character> rangeClosed(char from,
 char toInclusive)
```
 - rangeClosedBy
```
static Stream<java.lang.Character> rangeClosedBy(char from,
 char toInclusive,
 int step)
```
 - rangeClosedBy
```
@GwtIncompatible
static Stream<java.lang.Double> rangeClosedBy(double from,
 double toInclusive,
 double step)
```
 - rangeClosed
```
static Stream<java.lang.Integer> rangeClosed(int from,
 int toInclusive)
```
 Creates a Stream of int numbers starting from from, extending to toInclusive.
 Examples:
 Stream.rangeClosed(0, 0) // = Stream(0) Stream.rangeClosed(2, 0) // = Stream() Stream.rangeClosed(-2, 2) // = Stream(-2, -1, 0, 1, 2)
 Parameters:
 
 from - the first number
 
 toInclusive - the last number
 
 Returns:
 
 a range of int values as specified or Nil if from > toInclusive
 - rangeClosedBy
```
static Stream<java.lang.Integer> rangeClosedBy(int from,
 int toInclusive,
 int step)
```
 Creates a Stream of int numbers starting from from, extending to toInclusive, with step.
 Examples:
 Stream.rangeClosedBy(1, 3, 1) // = Stream(1, 2, 3) Stream.rangeClosedBy(1, 4, 2) // = Stream(1, 3) Stream.rangeClosedBy(4, 1, -2) // = Stream(4, 2) Stream.rangeClosedBy(4, 1, 2) // = Stream()
 Parameters:
 
 from - the first number
 
 toInclusive - the last number
 
 step - the step
 
 Returns:
 
 a range of int values as specified or Nil if
 from > toInclusive and step > 0 or
 from < toInclusive and step < 0
 
 Throws:
 
 java.lang.IllegalArgumentException - if step is zero
 - rangeClosed
```
static Stream<java.lang.Long> rangeClosed(long from,
 long toInclusive)
```
 Creates a Stream of long numbers starting from from, extending to toInclusive.
 Examples:
 Stream.rangeClosed(0L, 0L) // = Stream(0L) Stream.rangeClosed(2L, 0L) // = Stream() Stream.rangeClosed(-2L, 2L) // = Stream(-2L, -1L, 0L, 1L, 2L)
 Parameters:
 
 from - the first number
 
 toInclusive - the last number
 
 Returns:
 
 a range of long values as specified or Nil if from > toInclusive
 - rangeClosedBy
```
static Stream<java.lang.Long> rangeClosedBy(long from,
 long toInclusive,
 long step)
```
 Creates a Stream of long numbers starting from from, extending to toInclusive, with step.
 Examples:
 Stream.rangeClosedBy(1L, 3L, 1L) // = Stream(1L, 2L, 3L) Stream.rangeClosedBy(1L, 4L, 2L) // = Stream(1L, 3L) Stream.rangeClosedBy(4L, 1L, -2L) // = Stream(4L, 2L) Stream.rangeClosedBy(4L, 1L, 2L) // = Stream()
 Parameters:
 
 from - the first number
 
 toInclusive - the last number
 
 step - the step
 
 Returns:
 
 a range of int values as specified or Nil if
 from > toInclusive and step > 0 or
 from < toInclusive and step < 0
 
 Throws:
 
 java.lang.IllegalArgumentException - if step is zero
 - transpose
```
static <T> Stream<Stream<T>> transpose(Stream<Stream<T>> matrix)
```
 Transposes the rows and columns of a Stream matrix.
 
 Type Parameters:
 
 T - matrix element type
 
 Parameters:
 
 matrix - to be transposed.
 
 Returns:
 
 a transposed Stream matrix.
 
 Throws:
 
 java.lang.IllegalArgumentException - if the row lengths of matrix differ.
 ex: Stream.transpose(Stream(Stream(1,2,3), Stream(4,5,6))) → Stream(Stream(1,4), Stream(2,5), Stream(3,6))
 - unfoldRight
```
static <T,U> Stream unfoldRight(T seed,
 java.util.function.Function<? super T,Option<Tuple2<? extends U,? extends T>>> f)
```
 Creates a Stream from a seed value and a function. The function takes the seed at first. The function should return None when it's done generating the Stream, otherwise Some Tuple of the element for the next call and the value to add to the resulting Stream.
 Example:
 Stream.unfoldRight(10, x -> x == 0 ? Option.none() : Option.of(new Tuple2<>(x, x-1))); // Stream(10, 9, 8, 7, 6, 5, 4, 3, 2, 1))
 Type Parameters:
 
 T - type of seeds
 
 U - type of unfolded values
 
 Parameters:
 
 seed - the start value for the iteration
 
 f - the function to get the next step of the iteration
 
 Returns:
 
 a Stream with the values built up by the iteration
 
 Throws:
 
 java.lang.NullPointerException - if f is null
 - unfoldLeft
```
static <T,U> Stream unfoldLeft(T seed,
 java.util.function.Function<? super T,Option<Tuple2<? extends T,? extends U>>> f)
```
 Creates a Stream from a seed value and a function. The function takes the seed at first. The function should return None when it's done generating the Stream, otherwise Some Tuple of the value to add to the resulting Stream and the element for the next call.
 Example:
 Stream.unfoldLeft(10, x -> x == 0 ? Option.none() : Option.of(new Tuple2<>(x-1, x))); // Stream(1, 2, 3, 4, 5, 6, 7, 8, 9, 10))
 Type Parameters:
 
 T - type of seeds
 
 U - type of unfolded values
 
 Parameters:
 
 seed - the start value for the iteration
 
 f - the function to get the next step of the iteration
 
 Returns:
 
 a Stream with the values built up by the iteration
 
 Throws:
 
 java.lang.NullPointerException - if f is null
 - unfold
```
static <T> Stream<T> unfold(T seed,
 java.util.function.Function<? super T,Option<Tuple2<? extends T,? extends T>>> f)
```
 Creates a Stream from a seed value and a function. The function takes the seed at first. The function should return None when it's done generating the Stream, otherwise Some Tuple of the value to add to the resulting Stream and the element for the next call.
 Example:
 Stream.unfold(10, x -> x == 0 ? Option.none() : Option.of(new Tuple2<>(x-1, x))); // Stream(1, 2, 3, 4, 5, 6, 7, 8, 9, 10))
 Type Parameters:
 
 T - type of seeds and unfolded values
 
 Parameters:
 
 seed - the start value for the iteration
 
 f - the function to get the next step of the iteration
 
 Returns:
 
 a Stream with the values built up by the iteration
 
 Throws:
 
 java.lang.NullPointerException - if f is null
 - continually
```
static <T> Stream<T> continually(T t)
```
 Repeats an element infinitely often.
 
 Type Parameters:
 
 T - Element type
 
 Parameters:
 
 t - An element
 
 Returns:
 
 A new Stream containing infinite t's.
 - append
```
default Stream<T> append(T element)
```
 Description copied from interface: Seq
 
 Appends an element to this.
 
 Specified by:
 
 append in interface LinearSeq<T>
 
 Specified by:
 
 append in interface Seq<T>
 
 Parameters:
 
 element - An element
 
 Returns:
 
 A new Seq containing the given element appended to this elements
 - appendAll
```
default Stream<T> appendAll(java.lang.Iterable<? extends T> elements)
```
 Description copied from interface: Seq
 
 Appends all given elements to this.
 
 Specified by:
 
 appendAll in interface LinearSeq<T>
 
 Specified by:
 
 appendAll in interface Seq<T>
 
 Parameters:
 
 elements - An Iterable of elements
 
 Returns:
 
 A new Seq containing the given elements appended to this elements
 - appendSelf
```
default Stream<T> appendSelf(java.util.function.Function<? super Stream<T>,? extends Stream<T>> mapper)
```
 Appends itself to the end of stream with mapper function.
 Example:
 Well known Scala code for Fibonacci infinite sequence
 val fibs:Stream[Int] = 0 #:: 1 #:: (fibs zip fibs.tail).map{ t => t._1 + t._2 }
 can be transformed to
 Stream.of(0, 1).appendSelf(self -> self.zip(self.tail()).map(t -> t._1 + t._2));
 Parameters:
 
 mapper - an mapper
 
 Returns:
 
 a new Stream
 - asJava
```
@GwtIncompatible
default java.util.List<T> asJava()
```
 Description copied from interface: Seq
 Creates an immutable List view on top of this Seq, i.e. calling mutators will result in UnsupportedOperationException at runtime.
 The difference to conversion methods toJava*() is that
 
 A view is created in O(1) (constant time) whereas conversion takes O(n) (linear time), with n = collection size.
 
 The operations on a view have the same performance characteristics than the underlying persistent Vavr collection whereas the performance characteristics of a converted collection are those of the Java standard collections.
 
 Please note that our immutable java.util.List view throws UnsupportedOperationException before checking method arguments. Java does handle this case inconsistently.
 Specified by:
 
 asJava in interface Seq<T>
 
 Returns:
 
 A new immutable Collection view on this Traversable.
 - asJava
```
@GwtIncompatible
default Stream<T> asJava(java.util.function.Consumer<? super java.util.List<T>> action)
```
 Description copied from interface: Seq
 
 Creates an immutable List view on top of this Seq that is passed to the given action.
 
 Specified by:
 
 asJava in interface LinearSeq<T>
 
 Specified by:
 
 asJava in interface Seq<T>
 
 Parameters:
 
 action - A side-effecting unit of work that operates on an immutable java.util.List view.
 
 Returns:
 
 this instance
 
 See Also:
 
 Seq.asJava()
 - asJavaMutable
```
@GwtIncompatible
default java.util.List<T> asJavaMutable()
```
 Description copied from interface: Seq
 
 Creates a mutable List view on top of this Seq, i.e. all mutator methods of the List are implemented.
 
 Specified by:
 
 asJavaMutable in interface Seq<T>
 
 Returns:
 
 A new mutable Collection view on this Traversable.
 
 See Also:
 
 Seq.asJava()
 - asJavaMutable
```
@GwtIncompatible
default Stream<T> asJavaMutable(java.util.function.Consumer<? super java.util.List<T>> action)
```
 Description copied from interface: Seq
 
 Creates a mutable List view on top of this Seq that is passed to the given action.
 
 Specified by:
 
 asJavaMutable in interface LinearSeq<T>
 
 Specified by:
 
 asJavaMutable in interface Seq<T>
 
 Parameters:
 
 action - A side-effecting unit of work that operates on a mutable java.util.List view.
 
 Returns:
 
 this instance, if only read operations are performed on the java.util.List view or a new instance of this type, if write operations are performed on the java.util.List view.
 
 See Also:
 
 Seq.asJavaMutable()
 - collect
```
default <R> Stream<R> collect(PartialFunction<? super T,? extends R> partialFunction)
```
 Description copied from interface: Traversable
 Collects all elements that are in the domain of the given partialFunction by mapping the elements to type R.
 More specifically, for each of this elements in iteration order first it is checked
 partialFunction.isDefinedAt(element)
 If the elements makes it through that filter, the mapped instance is added to the result collection
 R newElement = partialFunction.apply(element)
 Note:If this Traversable is ordered (i.e. extends Ordered, the caller of collect has to ensure that the elements are comparable (i.e. extend Comparable).
 Specified by:
 
 collect in interface LinearSeq<T>
 
 Specified by:
 
 collect in interface Seq<T>
 
 Specified by:
 
 collect in interface Traversable<T>
 
 Type Parameters:
 
 R - The new element type
 
 Parameters:
 
 partialFunction - A function that is not necessarily defined of all elements of this traversable.
 
 Returns:
 
 A new Traversable instance containing elements of type R
 - combinations
```
default Stream<Stream<T>> combinations()
```
 Description copied from interface: Seq
 Returns the union of all combinations from k = 0 to length().
 Examples:
 [].combinations() = [[]] [1,2,3].combinations() = [ [], // k = 0 [1], [2], [3], // k = 1 [1,2], [1,3], [2,3], // k = 2 [1,2,3] // k = 3 ]
 Specified by:
 
 combinations in interface LinearSeq<T>
 
 Specified by:
 
 combinations in interface Seq<T>
 
 Returns:
 
 the combinations of this
 - combinations
```
default Stream<Stream<T>> combinations(int k)
```
 Description copied from interface: Seq
 
 Returns the k-combination of this traversable, i.e. all subset of this of k distinct elements.
 
 Specified by:
 
 combinations in interface LinearSeq<T>
 
 Specified by:
 
 combinations in interface Seq<T>
 
 Parameters:
 
 k - Size of subsets
 
 Returns:
 
 the k-combination of this elements
 
 See Also:
 
 Combination
 - crossProduct
```
default Iterator<Stream<T>> crossProduct(int power)
```
 Description copied from interface: Seq
 Calculates the n-ary cartesian power (or cross product or simply product) of this.
 Example:
 // = ((A,A), (A,B), (A,C), ..., (B,A), (B,B), ..., (Z,Y), (Z,Z)) CharSeq.rangeClosed('A', 'Z').crossProduct(2);
 
 Cartesian power of negative value will return empty iterator.
 Example:
 // = () CharSeq.rangeClosed('A', 'Z').crossProduct(-1);
 Specified by:
 
 crossProduct in interface LinearSeq<T>
 
 Specified by:
 
 crossProduct in interface Seq<T>
 
 Parameters:
 
 power - the number of cartesian multiplications
 
 Returns:
 
 A new Iterator representing the n-ary cartesian power of this
 - cycle
```
default Stream<T> cycle()
```
 Repeat the elements of this Stream infinitely.
 Example:
 // = 1, 2, 3, 1, 2, 3, 1, 2, 3, ... Stream.of(1, 2, 3).cycle();
 Returns:
 
 A new Stream containing this elements cycled.
 - cycle
```
default Stream<T> cycle(int count)
```
 Repeat the elements of this Stream count times.
 Example:
 // = empty Stream.of(1, 2, 3).cycle(0); // = 1, 2, 3 Stream.of(1, 2, 3).cycle(1); // = 1, 2, 3, 1, 2, 3, 1, 2, 3 Stream.of(1, 2, 3).cycle(3);
 Parameters:
 
 count - the number of cycles to be performed
 
 Returns:
 
 A new Stream containing this elements cycled count times.
 - distinct
```
default Stream<T> distinct()
```
 Description copied from interface: Traversable
 
 Returns a new version of this which contains no duplicates. Elements are compared using equals.
 
 Specified by:
 
 distinct in interface LinearSeq<T>
 
 Specified by:
 
 distinct in interface Seq<T>
 
 Specified by:
 
 distinct in interface Traversable<T>
 
 Returns:
 
 a new Traversable containing this elements without duplicates
 - distinctBy
```
default Stream<T> distinctBy(java.util.Comparator<? super T> comparator)
```
 Description copied from interface: Traversable
 
 Returns a new version of this which contains no duplicates. Elements are compared using the given comparator.
 
 Specified by:
 
 distinctBy in interface LinearSeq<T>
 
 Specified by:
 
 distinctBy in interface Seq<T>
 
 Specified by:
 
 distinctBy in interface Traversable<T>
 
 Parameters:
 
 comparator - A comparator
 
 Returns:
 
 a new Traversable containing this elements without duplicates
 - distinctBy
```
default  Stream<T> distinctBy(java.util.function.Function<? super T,? extends U> keyExtractor)
```
 Description copied from interface: Traversable
 
 Returns a new version of this which contains no duplicates. Elements mapped to keys which are compared using equals.
 The elements of the result are determined in the order of their occurrence - first match wins.
 
 Specified by:
 
 distinctBy in interface LinearSeq<T>
 
 Specified by:
 
 distinctBy in interface Seq<T>
 
 Specified by:
 
 distinctBy in interface Traversable<T>
 
 Type Parameters:
 
 U - key type
 
 Parameters:
 
 keyExtractor - A key extractor
 
 Returns:
 
 a new Traversable containing this elements without duplicates
 - drop
```
default Stream<T> drop(int n)
```
 Description copied from interface: Traversable
 
 Drops the first n elements of this or all elements, if this length < n.
 
 Specified by:
 
 drop in interface LinearSeq<T>
 
 Specified by:
 
 drop in interface Seq<T>
 
 Specified by:
 
 drop in interface Traversable<T>
 
 Parameters:
 
 n - The number of elements to drop.
 
 Returns:
 
 a new instance consisting of all elements of this except the first n ones, or else the empty instance, if this has less than n elements.
 - dropUntil
```
default Stream<T> dropUntil(java.util.function.Predicate<? super T> predicate)
```
 Description copied from interface: Traversable
 
 Drops elements until the predicate holds for the current element.
 
 Specified by:
 
 dropUntil in interface LinearSeq<T>
 
 Specified by:
 
 dropUntil in interface Seq<T>
 
 Specified by:
 
 dropUntil in interface Traversable<T>
 
 Parameters:
 
 predicate - A condition tested subsequently for this elements.
 
 Returns:
 
 a new instance consisting of all elements starting from the first one which does satisfy the given predicate.
 - dropWhile
```
default Stream<T> dropWhile(java.util.function.Predicate<? super T> predicate)
```
 Description copied from interface: Traversable
 
 Drops elements while the predicate holds for the current element.
 Note: This is essentially the same as dropUntil(predicate.negate()). It is intended to be used with method references, which cannot be negated directly.
 
 Specified by:
 
 dropWhile in interface LinearSeq<T>
 
 Specified by:
 
 dropWhile in interface Seq<T>
 
 Specified by:
 
 dropWhile in interface Traversable<T>
 
 Parameters:
 
 predicate - A condition tested subsequently for this elements.
 
 Returns:
 
 a new instance consisting of all elements starting from the first one which does not satisfy the given predicate.
 - dropRight
```
default Stream<T> dropRight(int n)
```
 Description copied from interface: Traversable
 
 Drops the last n elements of this or all elements, if this length < n.
 
 Specified by:
 
 dropRight in interface LinearSeq<T>
 
 Specified by:
 
 dropRight in interface Seq<T>
 
 Specified by:
 
 dropRight in interface Traversable<T>
 
 Parameters:
 
 n - The number of elements to drop.
 
 Returns:
 
 a new instance consisting of all elements of this except the last n ones, or else the empty instance, if this has less than n elements.
 - dropRightUntil
```
default Stream<T> dropRightUntil(java.util.function.Predicate<? super T> predicate)
```
 Description copied from interface: Seq
 
 Drops elements until the predicate holds for the current element, starting from the end.
 
 Specified by:
 
 dropRightUntil in interface LinearSeq<T>
 
 Specified by:
 
 dropRightUntil in interface Seq<T>
 
 Parameters:
 
 predicate - A condition tested subsequently for this elements, starting from the end.
 
 Returns:
 
 a new instance consisting of all elements until and including the last one which does satisfy the given predicate.
 - dropRightWhile
```
default Stream<T> dropRightWhile(java.util.function.Predicate<? super T> predicate)
```
 Description copied from interface: Seq
 
 Drops elements while the predicate holds for the current element, starting from the end.
 Note: This is essentially the same as dropRightUntil(predicate.negate()). It is intended to be used with method references, which cannot be negated directly.
 
 Specified by:
 
 dropRightWhile in interface LinearSeq<T>
 
 Specified by:
 
 dropRightWhile in interface Seq<T>
 
 Parameters:
 
 predicate - A condition tested subsequently for this elements, starting from the end.
 
 Returns:
 
 a new instance consisting of all elements until and including the last one which does not satisfy the given predicate.
 - filter
```
default Stream<T> filter(java.util.function.Predicate<? super T> predicate)
```
 Description copied from interface: Traversable
 
 Returns a new traversable consisting of all elements which satisfy the given predicate.
 
 Specified by:
 
 filter in interface LinearSeq<T>
 
 Specified by:
 
 filter in interface Seq<T>
 
 Specified by:
 
 filter in interface Traversable<T>
 
 Parameters:
 
 predicate - A predicate
 
 Returns:
 
 a new traversable
 - reject
```
default Stream<T> reject(java.util.function.Predicate<? super T> predicate)
```
 Description copied from interface: Traversable
 Returns a new traversable consisting of all elements which do not satisfy the given predicate.
 The default implementation is equivalent to
 filter(predicate.negate()
 Specified by:
 
 reject in interface LinearSeq<T>
 
 Specified by:
 
 reject in interface Seq<T>
 
 Specified by:
 
 reject in interface Traversable<T>
 
 Parameters:
 
 predicate - A predicate
 
 Returns:
 
 a new traversable
 - flatMap
```
default  Stream flatMap(java.util.function.Function<? super T,? extends java.lang.Iterable<? extends U>> mapper)
```
 Description copied from interface: Traversable
 
 FlatMaps this Traversable.
 
 Specified by:
 
 flatMap in interface LinearSeq<T>
 
 Specified by:
 
 flatMap in interface Seq<T>
 
 Specified by:
 
 flatMap in interface Traversable<T>
 
 Type Parameters:
 
 U - The resulting component type.
 
 Parameters:
 
 mapper - A mapper
 
 Returns:
 
 A new Traversable instance.
 - get
```
default T get(int index)
```
 Description copied from interface: Seq
 
 Returns the element at the specified index.
 
 Specified by:
 
 get in interface Seq<T>
 
 Parameters:
 
 index - an index
 
 Returns:
 
 the element at the given index
 - groupBy
```
default <C> Map<C,Stream<T>> groupBy(java.util.function.Function<? super T,? extends C> classifier)
```
 Description copied from interface: Traversable
 
 Groups this elements by classifying the elements.
 
 Specified by:
 
 groupBy in interface LinearSeq<T>
 
 Specified by:
 
 groupBy in interface Seq<T>
 
 Specified by:
 
 groupBy in interface Traversable<T>
 
 Type Parameters:
 
 C - classified class type
 
 Parameters:
 
 classifier - A function which classifies elements into classes
 
 Returns:
 
 A Map containing the grouped elements
 
 See Also:
 
 Traversable.arrangeBy(Function)
 - grouped
```
default Iterator<Stream<T>> grouped(int size)
```
 Description copied from interface: Traversable
 Groups this Traversable into fixed size blocks.
 Let length be the length of this Iterable. Then grouped is defined as follows:
 
 If this.isEmpty(), the resulting Iterator is empty.
 
 If size <= length, the resulting Iterator will contain length / size blocks of size size and maybe a non-empty block of size length % size, if there are remaining elements.
 
 If size > length, the resulting Iterator will contain one block of size length.
 
 Examples:
 [].grouped(1) = [] [].grouped(0) throws [].grouped(-1) throws [1,2,3,4].grouped(2) = [[1,2],[3,4]] [1,2,3,4,5].grouped(2) = [[1,2],[3,4],[5]] [1,2,3,4].grouped(5) = [[1,2,3,4]]
 Please note that grouped(int) is a special case of Traversable.sliding(int, int), i.e. grouped(size) is the same as sliding(size, size).
 Specified by:
 
 grouped in interface LinearSeq<T>
 
 Specified by:
 
 grouped in interface Seq<T>
 
 Specified by:
 
 grouped in interface Traversable<T>
 
 Parameters:
 
 size - a positive block size
 
 Returns:
 
 A new Iterator of grouped blocks of the given size
 - hasDefiniteSize
```
default boolean hasDefiniteSize()
```
 Description copied from interface: Traversable
 
 Checks if this Traversable is known to have a finite size.
 This method should be implemented by classes only, i.e. not by interfaces.
 
 Specified by:
 
 hasDefiniteSize in interface Traversable<T>
 
 Returns:
 
 true, if this Traversable is known to have a finite size, false otherwise.
 - indexOf
```
default int indexOf(T element,
 int from)
```
 Description copied from interface: Seq
 
 Returns the index of the first occurrence of the given element after or at some start index or -1 if this does not contain the given element.
 
 Specified by:
 
 indexOf in interface Seq<T>
 
 Parameters:
 
 element - an element
 
 from - start index
 
 Returns:
 
 the index of the first occurrence of the given element
 - init
```
default Stream<T> init()
```
 Description copied from interface: Traversable
 
 Dual of Traversable.tail(), returning all elements except the last.
 
 Specified by:
 
 init in interface LinearSeq<T>
 
 Specified by:
 
 init in interface Seq<T>
 
 Specified by:
 
 init in interface Traversable<T>
 
 Returns:
 
 a new instance containing all elements except the last.
 - initOption
```
default Option<Stream<T>> initOption()
```
 Description copied from interface: Traversable
 
 Dual of Traversable.tailOption(), returning all elements except the last as Option.
 
 Specified by:
 
 initOption in interface LinearSeq<T>
 
 Specified by:
 
 initOption in interface Seq<T>
 
 Specified by:
 
 initOption in interface Traversable<T>
 
 Returns:
 
 Some(traversable) or None if this is empty.
 - insert
```
default Stream<T> insert(int index,
 T element)
```
 Description copied from interface: Seq
 
 Inserts the given element at the specified index.
 
 Specified by:
 
 insert in interface LinearSeq<T>
 
 Specified by:
 
 insert in interface Seq<T>
 
 Parameters:
 
 index - an index
 
 element - an element
 
 Returns:
 
 a new Seq, where the given element is inserted into this at the given index
 - insertAll
```
default Stream<T> insertAll(int index,
 java.lang.Iterable<? extends T> elements)
```
 Description copied from interface: Seq
 
 Inserts the given elements at the specified index.
 
 Specified by:
 
 insertAll in interface LinearSeq<T>
 
 Specified by:
 
 insertAll in interface Seq<T>
 
 Parameters:
 
 index - an index
 
 elements - An Iterable of elements
 
 Returns:
 
 a new Seq, where the given elements are inserted into this at the given index
 - intersperse
```
default Stream<T> intersperse(T element)
```
 Description copied from interface: Seq
 
 Inserts an element between all elements of this Traversable.
 
 Specified by:
 
 intersperse in interface LinearSeq<T>
 
 Specified by:
 
 intersperse in interface Seq<T>
 
 Parameters:
 
 element - An element.
 
 Returns:
 
 an interspersed version of this
 - isAsync
```
default boolean isAsync()
```
 A Stream is computed synchronously.
 
 Specified by:
 
 isAsync in interface Value<T>
 
 Returns:
 
 false
 - isLazy
```
default boolean isLazy()
```
 A Stream is computed lazily.
 
 Specified by:
 
 isLazy in interface Value<T>
 
 Returns:
 
 true
 - isTraversableAgain
```
default boolean isTraversableAgain()
```
 Description copied from interface: Traversable
 
 Checks if this Traversable can be repeatedly traversed.
 This method should be implemented by classes only, i.e. not by interfaces.
 
 Specified by:
 
 isTraversableAgain in interface Traversable<T>
 
 Returns:
 
 true, if this Traversable is known to be traversable repeatedly, false otherwise.
 - last
```
default T last()
```
 Description copied from interface: Traversable
 
 Dual of Traversable.head(), returning the last element.
 
 Specified by:
 
 last in interface Traversable<T>
 
 Returns:
 
 the last element.
 - lastIndexOf
```
default int lastIndexOf(T element,
 int end)
```
 Description copied from interface: Seq
 
 Returns the index of the last occurrence of the given element before or at a given end index or -1 if this does not contain the given element.
 
 Specified by:
 
 lastIndexOf in interface Seq<T>
 
 Parameters:
 
 element - an element
 
 end - the end index
 
 Returns:
 
 the index of the last occurrence of the given element
 - length
```
default int length()
```
 Description copied from interface: Traversable
 
 Computes the number of elements of this Traversable.
 Same as Traversable.size().
 
 Specified by:
 
 length in interface Traversable<T>
 
 Returns:
 
 the number of elements
 - map
```
default  Stream map(java.util.function.Function<? super T,? extends U> mapper)
```
 Description copied from interface: Traversable
 
 Maps the elements of this Traversable to elements of a new type preserving their order, if any.
 
 Specified by:
 
 map in interface LinearSeq<T>
 
 Specified by:
 
 map in interface Seq<T>
 
 Specified by:
 
 map in interface Traversable<T>
 
 Specified by:
 
 map in interface Value<T>
 
 Type Parameters:
 
 U - Component type of the target Traversable
 
 Parameters:
 
 mapper - A mapper.
 
 Returns:
 
 a mapped Traversable
 - padTo
```
default Stream<T> padTo(int length,
 T element)
```
 Description copied from interface: Seq
 
 A copy of this sequence with an element appended until a given target length is reached.
 Note: lazily-evaluated Seq implementations need to process all elements in order to gather the overall length.
 
 Specified by:
 
 padTo in interface LinearSeq<T>
 
 Specified by:
 
 padTo in interface Seq<T>
 
 Parameters:
 
 length - the target length
 
 element - the padding element
 
 Returns:
 
 a new sequence consisting of all elements of this sequence followed by the minimal number of occurrences of element so that the resulting sequence has a length of at least length.
 - leftPadTo
```
default Stream<T> leftPadTo(int length,
 T element)
```
 Description copied from interface: Seq
 
 A copy of this sequence with an element prepended until a given target length is reached.
 Note: lazily-evaluated Seq implementations need to process all elements in order to gather the overall length.
 
 Specified by:
 
 leftPadTo in interface Seq<T>
 
 Parameters:
 
 length - the target length
 
 element - the padding element
 
 Returns:
 
 a new sequence consisting of all elements of this sequence prepended by the minimal number of occurrences of element so that the resulting sequence has a length of at least length.
 - orElse
```
default Stream<T> orElse(java.lang.Iterable<? extends T> other)
```
 Description copied from interface: Traversable
 
 Returns this Traversable if it is nonempty, otherwise return the alternative.
 
 Specified by:
 
 orElse in interface LinearSeq<T>
 
 Specified by:
 
 orElse in interface Seq<T>
 
 Specified by:
 
 orElse in interface Traversable<T>
 
 Parameters:
 
 other - An alternative Traversable
 
 Returns:
 
 this Traversable if it is nonempty, otherwise return the alternative.
 - orElse
```
default Stream<T> orElse(java.util.function.Supplier<? extends java.lang.Iterable<? extends T>> supplier)
```
 Description copied from interface: Traversable
 
 Returns this Traversable if it is nonempty, otherwise return the result of evaluating supplier.
 
 Specified by:
 
 orElse in interface LinearSeq<T>
 
 Specified by:
 
 orElse in interface Seq<T>
 
 Specified by:
 
 orElse in interface Traversable<T>
 
 Parameters:
 
 supplier - An alternative Traversable supplier
 
 Returns:
 
 this Traversable if it is nonempty, otherwise return the result of evaluating supplier.
 - patch
```
default Stream<T> patch(int from,
 java.lang.Iterable<? extends T> that,
 int replaced)
```
 Description copied from interface: Seq
 
 Produces a new list where a slice of elements in this list is replaced by another sequence.
 
 Specified by:
 
 patch in interface LinearSeq<T>
 
 Specified by:
 
 patch in interface Seq<T>
 
 Parameters:
 
 from - the index of the first replaced element
 
 that - sequence for replacement
 
 replaced - the number of elements to drop in the original list
 
 Returns:
 
 a new sequence.
 - partition
```
default Tuple2<Stream<T>,Stream<T>> partition(java.util.function.Predicate<? super T> predicate)
```
 Description copied from interface: Traversable
 
 Creates a partition of this Traversable by splitting this elements in two in distinct traversables according to a predicate.
 
 Specified by:
 
 partition in interface LinearSeq<T>
 
 Specified by:
 
 partition in interface Seq<T>
 
 Specified by:
 
 partition in interface Traversable<T>
 
 Parameters:
 
 predicate - A predicate which classifies an element if it is in the first or the second traversable.
 
 Returns:
 
 A disjoint union of two traversables. The first Traversable contains all elements that satisfy the given predicate, the second Traversable contains all elements that don't. The original order of elements is preserved.
 - peek
```
default Stream<T> peek(java.util.function.Consumer<? super T> action)
```
 Description copied from interface: Value
 
 Performs the given action on the first element if this is an eager implementation. Performs the given action on all elements (the first immediately, successive deferred), if this is a lazy implementation.
 
 Specified by:
 
 peek in interface LinearSeq<T>
 
 Specified by:
 
 peek in interface Seq<T>
 
 Specified by:
 
 peek in interface Traversable<T>
 
 Specified by:
 
 peek in interface Value<T>
 
 Parameters:
 
 action - The action that will be performed on the element(s).
 
 Returns:
 
 this instance
 - permutations
```
default Stream<Stream<T>> permutations()
```
 Description copied from interface: Seq
 Computes all unique permutations.
 Example:
 [].permutations() = [] [1,2,3].permutations() = [ [1,2,3], [1,3,2], [2,1,3], [2,3,1], [3,1,2], [3,2,1] ]
 Specified by:
 
 permutations in interface LinearSeq<T>
 
 Specified by:
 
 permutations in interface Seq<T>
 
 Returns:
 
 this unique permutations
 - prepend
```
default Stream<T> prepend(T element)
```
 Description copied from interface: Seq
 
 Prepends an element to this.
 
 Specified by:
 
 prepend in interface LinearSeq<T>
 
 Specified by:
 
 prepend in interface Seq<T>
 
 Parameters:
 
 element - An element
 
 Returns:
 
 A new Seq containing the given element prepended to this elements
 - prependAll
```
default Stream<T> prependAll(java.lang.Iterable<? extends T> elements)
```
 Description copied from interface: Seq
 
 Prepends all given elements to this.
 
 Specified by:
 
 prependAll in interface LinearSeq<T>
 
 Specified by:
 
 prependAll in interface Seq<T>
 
 Parameters:
 
 elements - An Iterable of elements
 
 Returns:
 
 A new Seq containing the given elements prepended to this elements
 - remove
```
default Stream<T> remove(T element)
```
 Description copied from interface: Seq
 
 Removes the first occurrence of the given element.
 
 Specified by:
 
 remove in interface LinearSeq<T>
 
 Specified by:
 
 remove in interface Seq<T>
 
 Parameters:
 
 element - An element to be removed from this Seq.
 
 Returns:
 
 a Seq containing all elements of this without the first occurrence of the given element.
 - removeFirst
```
default Stream<T> removeFirst(java.util.function.Predicate<T> predicate)
```
 Description copied from interface: Seq
 
 Removes the first occurrence that satisfy predicate
 
 Specified by:
 
 removeFirst in interface LinearSeq<T>
 
 Specified by:
 
 removeFirst in interface Seq<T>
 
 Parameters:
 
 predicate - an predicate
 
 Returns:
 
 a new Seq
 - removeLast
```
default Stream<T> removeLast(java.util.function.Predicate<T> predicate)
```
 Description copied from interface: Seq
 
 Removes the last occurrence that satisfy predicate
 
 Specified by:
 
 removeLast in interface LinearSeq<T>
 
 Specified by:
 
 removeLast in interface Seq<T>
 
 Parameters:
 
 predicate - an predicate
 
 Returns:
 
 a new Seq
 - removeAt
```
default Stream<T> removeAt(int index)
```
 Description copied from interface: Seq
 
 Removes the element at the specified position in this sequence. Shifts any subsequent elements to the left (subtracts one from their indices).
 
 Specified by:
 
 removeAt in interface LinearSeq<T>
 
 Specified by:
 
 removeAt in interface Seq<T>
 
 Parameters:
 
 index - position of element to remove
 
 Returns:
 
 a sequence containing all elements of this without the element at the specified position.
 - removeAll
```
default Stream<T> removeAll(T element)
```
 Description copied from interface: Seq
 
 Removes all occurrences of the given element.
 
 Specified by:
 
 removeAll in interface LinearSeq<T>
 
 Specified by:
 
 removeAll in interface Seq<T>
 
 Parameters:
 
 element - An element to be removed from this Seq.
 
 Returns:
 
 a Seq containing all elements of this but not the given element.
 - removeAll
```
default Stream<T> removeAll(java.lang.Iterable<? extends T> elements)
```
 Description copied from interface: Seq
 
 Removes all occurrences of the given elements.
 
 Specified by:
 
 removeAll in interface LinearSeq<T>
 
 Specified by:
 
 removeAll in interface Seq<T>
 
 Parameters:
 
 elements - Elements to be removed from this Seq.
 
 Returns:
 
 a Seq containing all elements of this but none of the given elements.
 - removeAll
```
@Deprecated
default Stream<T> removeAll(java.util.function.Predicate<? super T> predicate)
```
 Deprecated.
 
 Description copied from interface: Seq
 
 Returns a new Seq consisting of all elements which do not satisfy the given predicate.
 
 Specified by:
 
 removeAll in interface LinearSeq<T>
 
 Specified by:
 
 removeAll in interface Seq<T>
 
 Parameters:
 
 predicate - the predicate used to test elements
 
 Returns:
 
 a new Seq
 - replace
```
default Stream<T> replace(T currentElement,
 T newElement)
```
 Description copied from interface: Traversable
 
 Replaces the first occurrence (if exists) of the given currentElement with newElement.
 
 Specified by:
 
 replace in interface LinearSeq<T>
 
 Specified by:
 
 replace in interface Seq<T>
 
 Specified by:
 
 replace in interface Traversable<T>
 
 Parameters:
 
 currentElement - An element to be substituted.
 
 newElement - A replacement for currentElement.
 
 Returns:
 
 a Traversable containing all elements of this where the first occurrence of currentElement is replaced with newElement.
 - replaceAll
```
default Stream<T> replaceAll(T currentElement,
 T newElement)
```
 Description copied from interface: Traversable
 
 Replaces all occurrences of the given currentElement with newElement.
 
 Specified by:
 
 replaceAll in interface LinearSeq<T>
 
 Specified by:
 
 replaceAll in interface Seq<T>
 
 Specified by:
 
 replaceAll in interface Traversable<T>
 
 Parameters:
 
 currentElement - An element to be substituted.
 
 newElement - A replacement for currentElement.
 
 Returns:
 
 a Traversable containing all elements of this where all occurrences of currentElement are replaced with newElement.
 - retainAll
```
default Stream<T> retainAll(java.lang.Iterable<? extends T> elements)
```
 Description copied from interface: Traversable
 
 Keeps all occurrences of the given elements from this.
 
 Specified by:
 
 retainAll in interface LinearSeq<T>
 
 Specified by:
 
 retainAll in interface Seq<T>
 
 Specified by:
 
 retainAll in interface Traversable<T>
 
 Parameters:
 
 elements - Elements to be kept.
 
 Returns:
 
 a Traversable containing all occurrences of the given elements.
 - reverse
```
default Stream<T> reverse()
```
 Description copied from interface: Seq
 
 Reverses the order of elements.
 
 Specified by:
 
 reverse in interface LinearSeq<T>
 
 Specified by:
 
 reverse in interface Seq<T>
 
 Returns:
 
 the reversed elements.
 - rotateLeft
```
default Stream<T> rotateLeft(int n)
```
 Description copied from interface: Seq
 Circular rotates the elements by the specified distance to the left direction.
 // = List(3, 4, 5, 1, 2) List.of(1, 2, 3, 4, 5).rotateLeft(2);
 Specified by:
 
 rotateLeft in interface LinearSeq<T>
 
 Specified by:
 
 rotateLeft in interface Seq<T>
 
 Parameters:
 
 n - distance of left rotation
 
 Returns:
 
 the rotated elements.
 - rotateRight
```
default Stream<T> rotateRight(int n)
```
 Description copied from interface: Seq
 Circular rotates the elements by the specified distance to the right direction.
 // = List(4, 5, 1, 2, 3) List.of(1, 2, 3, 4, 5).rotateRight(2);
 Specified by:
 
 rotateRight in interface LinearSeq<T>
 
 Specified by:
 
 rotateRight in interface Seq<T>
 
 Parameters:
 
 n - distance of right rotation
 
 Returns:
 
 the rotated elements.
 - scan
```
default Stream<T> scan(T zero,
 java.util.function.BiFunction<? super T,? super T,? extends T> operation)
```
 Description copied from interface: Traversable
 
 Computes a prefix scan of the elements of the collection. Note: The neutral element z may be applied more than once.
 
 Specified by:
 
 scan in interface LinearSeq<T>
 
 Specified by:
 
 scan in interface Seq<T>
 
 Specified by:
 
 scan in interface Traversable<T>
 
 Parameters:
 
 zero - neutral element for the operator op
 
 operation - the associative operator for the scan
 
 Returns:
 
 a new traversable collection containing the prefix scan of the elements in this traversable collection
 - scanLeft
```
default  Stream scanLeft(U zero,
 java.util.function.BiFunction<? super U,? super T,? extends U> operation)
```
 Description copied from interface: Traversable
 
 Produces a collection containing cumulative results of applying the operator going left to right. Note: will not terminate for infinite-sized collections. Note: might return different results for different runs, unless the underlying collection type is ordered.
 
 Specified by:
 
 scanLeft in interface LinearSeq<T>
 
 Specified by:
 
 scanLeft in interface Seq<T>
 
 Specified by:
 
 scanLeft in interface Traversable<T>
 
 Type Parameters:
 
 U - the type of the elements in the resulting collection
 
 Parameters:
 
 zero - the initial value
 
 operation - the binary operator applied to the intermediate result and the element
 
 Returns:
 
 collection with intermediate results
 - scanRight
```
default  Stream scanRight(U zero,
 java.util.function.BiFunction<? super T,? super U,? extends U> operation)
```
 Description copied from interface: Traversable
 
 Produces a collection containing cumulative results of applying the operator going right to left. The head of the collection is the last cumulative result. Note: will not terminate for infinite-sized collections. Note: might return different results for different runs, unless the underlying collection type is ordered.
 
 Specified by:
 
 scanRight in interface LinearSeq<T>
 
 Specified by:
 
 scanRight in interface Seq<T>
 
 Specified by:
 
 scanRight in interface Traversable<T>
 
 Type Parameters:
 
 U - the type of the elements in the resulting collection
 
 Parameters:
 
 zero - the initial value
 
 operation - the binary operator applied to the intermediate result and the element
 
 Returns:
 
 collection with intermediate results
 - shuffle
```
default Stream<T> shuffle()
```
 Description copied from interface: Seq
 
 Randomize the order of the elements in the current sequence.
 
 Specified by:
 
 shuffle in interface LinearSeq<T>
 
 Specified by:
 
 shuffle in interface Seq<T>
 
 Returns:
 
 a sequence with the same elements as the current sequence in a random order.
 - slice
```
default Stream<T> slice(int beginIndex,
 int endIndex)
```
 Description copied from interface: Seq
 Returns a Seq that is a slice of this. The slice begins with the element at the specified beginIndex and extends to the element at index endIndex - 1.
 Examples:
 List.of(1, 2, 3, 4).slice(1, 3); // = (2, 3) List.of(1, 2, 3, 4).slice(0, 4); // = (1, 2, 3, 4) List.of(1, 2, 3, 4).slice(2, 2); // = () List.of(1, 2).slice(1, 0); // = () List.of(1, 2).slice(-10, 10); // = (1, 2)
 See also Seq.subSequence(int, int) which throws in some cases instead of returning a sequence.
 Specified by:
 
 slice in interface LinearSeq<T>
 
 Specified by:
 
 slice in interface Seq<T>
 
 Parameters:
 
 beginIndex - the beginning index, inclusive
 
 endIndex - the end index, exclusive
 
 Returns:
 
 the specified slice
 - slideBy
```
default Iterator<Stream<T>> slideBy(java.util.function.Function<? super T,?> classifier)
```
 Description copied from interface: Traversable
 Slides a non-overlapping window of a variable size over this Traversable.
 Each window contains elements with the same class, as determined by classifier. Two consecutive values in this Traversable will be in the same window only if classifier returns equal values for them. Otherwise, the values will constitute the last element of the previous window and the first element of the next window.
 Examples:
 [].slideBy(Function.identity()) = [] [1,2,3,4,4,5].slideBy(Function.identity()) = [[1],[2],[3],[4,4],[5]] [1,2,3,10,12,5,7,20,29].slideBy(x -> x/10) = [[1,2,3],[10,12],[5,7],[20,29]]
 Specified by:
 
 slideBy in interface LinearSeq<T>
 
 Specified by:
 
 slideBy in interface Seq<T>
 
 Specified by:
 
 slideBy in interface Traversable<T>
 
 Parameters:
 
 classifier - A function which classifies elements into classes
 
 Returns:
 
 A new Iterator of windows of the grouped elements
 - sliding
```
default Iterator<Stream<T>> sliding(int size)
```
 Description copied from interface: Traversable
 
 Slides a window of a specific size and step size 1 over this Traversable by calling Traversable.sliding(int, int).
 
 Specified by:
 
 sliding in interface LinearSeq<T>
 
 Specified by:
 
 sliding in interface Seq<T>
 
 Specified by:
 
 sliding in interface Traversable<T>
 
 Parameters:
 
 size - a positive window size
 
 Returns:
 
 a new Iterator of windows of a specific size using step size 1
 - sliding
```
default Iterator<Stream<T>> sliding(int size,
 int step)
```
 Description copied from interface: Traversable
 Slides a window of a specific size and step size over this Traversable.
 Examples:
 [].sliding(1,1) = [] [1,2,3,4,5].sliding(2,3) = [[1,2],[4,5]] [1,2,3,4,5].sliding(2,4) = [[1,2],[5]] [1,2,3,4,5].sliding(2,5) = [[1,2]] [1,2,3,4].sliding(5,3) = [[1,2,3,4],[4]]
 Specified by:
 
 sliding in interface LinearSeq<T>
 
 Specified by:
 
 sliding in interface Seq<T>
 
 Specified by:
 
 sliding in interface Traversable<T>
 
 Parameters:
 
 size - a positive window size
 
 step - a positive step size
 
 Returns:
 
 a new Iterator of windows of a specific size using a specific step size
 - sorted
```
default Stream<T> sorted()
```
 Description copied from interface: Seq
 
 Sorts this elements according to their natural order. If this elements are not Comparable, a java.lang.ClassCastException may be thrown.
 
 Specified by:
 
 sorted in interface LinearSeq<T>
 
 Specified by:
 
 sorted in interface Seq<T>
 
 Returns:
 
 A sorted version of this
 - sorted
```
default Stream<T> sorted(java.util.Comparator<? super T> comparator)
```
 Description copied from interface: Seq
 
 Sorts this elements according to the provided Comparator. If this elements are not Comparable, a java.lang.ClassCastException may be thrown.
 
 Specified by:
 
 sorted in interface LinearSeq<T>
 
 Specified by:
 
 sorted in interface Seq<T>
 
 Parameters:
 
 comparator - A comparator
 
 Returns:
 
 a sorted version of this
 - sortBy
```
default > Stream<T> sortBy(java.util.function.Function<? super T,? extends U> mapper)
```
 Description copied from interface: Seq
 
 Sorts this elements by comparing the elements in a different domain, using the given mapper.
 
 Specified by:
 
 sortBy in interface LinearSeq<T>
 
 Specified by:
 
 sortBy in interface Seq<T>
 
 Type Parameters:
 
 U - The domain where elements are compared
 
 Parameters:
 
 mapper - A mapper
 
 Returns:
 
 a sorted version of this
 - sortBy
```
default  Stream<T> sortBy(java.util.Comparator<? super U> comparator,
 java.util.function.Function<? super T,? extends U> mapper)
```
 Description copied from interface: Seq
 
 Sorts this elements by comparing the elements in a different domain, using the given mapper.
 
 Specified by:
 
 sortBy in interface LinearSeq<T>
 
 Specified by:
 
 sortBy in interface Seq<T>
 
 Type Parameters:
 
 U - The domain where elements are compared
 
 Parameters:
 
 comparator - A comparator
 
 mapper - A mapper
 
 Returns:
 
 a sorted version of this
 - span
```
default Tuple2<Stream<T>,Stream<T>> span(java.util.function.Predicate<? super T> predicate)
```
 Description copied from interface: Traversable
 
 Returns a tuple where the first element is the longest prefix of elements that satisfy the given predicate and the second element is the remainder.
 
 Specified by:
 
 span in interface LinearSeq<T>
 
 Specified by:
 
 span in interface Seq<T>
 
 Specified by:
 
 span in interface Traversable<T>
 
 Parameters:
 
 predicate - A predicate.
 
 Returns:
 
 a Tuple containing the longest prefix of elements that satisfy p and the remainder.
 - splitAt
```
default Tuple2<Stream<T>,Stream<T>> splitAt(int n)
```
 Description copied from interface: Seq
 
 Splits a Seq at the specified index. The result of splitAt(n) is equivalent to Tuple.of(take(n), drop(n)).
 
 Specified by:
 
 splitAt in interface Seq<T>
 
 Parameters:
 
 n - An index.
 
 Returns:
 
 A Tuple containing the first n and the remaining elements.
 - splitAt
```
default Tuple2<Stream<T>,Stream<T>> splitAt(java.util.function.Predicate<? super T> predicate)
```
 Description copied from interface: Seq
 
 Splits a sequence at the first element which satisfies the Predicate, e.g. Tuple(init, element+tail).
 
 Specified by:
 
 splitAt in interface Seq<T>
 
 Parameters:
 
 predicate - An predicate
 
 Returns:
 
 A Tuple containing divided sequences
 - splitAtInclusive
```
default Tuple2<Stream<T>,Stream<T>> splitAtInclusive(java.util.function.Predicate<? super T> predicate)
```
 Description copied from interface: Seq
 
 Splits a sequence at the first element which satisfies the Predicate, e.g. Tuple(init+element, tail).
 
 Specified by:
 
 splitAtInclusive in interface Seq<T>
 
 Parameters:
 
 predicate - An predicate
 
 Returns:
 
 A Tuple containing divided sequences
 - stringPrefix
```
default java.lang.String stringPrefix()
```
 Description copied from interface: Value
 
 Returns the name of this Value type, which is used by toString().
 
 Specified by:
 
 stringPrefix in interface Value<T>
 
 Returns:
 
 This type name.
 - subSequence
```
default Stream<T> subSequence(int beginIndex)
```
 Description copied from interface: Seq
 Returns a Seq that is a subsequence of this. The subsequence begins with the element at the specified beginIndex and extends to the end of this Seq.
 Examples:
 List.of(1, 2).subSequence(0); // = (1, 2) List.of(1, 2).subSequence(1); // = (2) List.of(1, 2).subSequence(2); // = () List.of(1, 2).subSequence(10); // throws IndexOutOfBoundsException List.of(1, 2).subSequence(-10); // throws IndexOutOfBoundsException
 See also Seq.drop(int) which is similar but does not throw.
 Specified by:
 
 subSequence in interface LinearSeq<T>
 
 Specified by:
 
 subSequence in interface Seq<T>
 
 Parameters:
 
 beginIndex - the beginning index, inclusive
 
 Returns:
 
 the specified subsequence
 - subSequence
```
default Stream<T> subSequence(int beginIndex,
 int endIndex)
```
 Description copied from interface: Seq
 Returns a Seq that is a subsequence of this. The subsequence begins with the element at the specified beginIndex and extends to the element at index endIndex - 1.
 Examples:
 List.of(1, 2, 3, 4).subSequence(1, 3); // = (2, 3) List.of(1, 2, 3, 4).subSequence(0, 4); // = (1, 2, 3, 4) List.of(1, 2, 3, 4).subSequence(2, 2); // = () List.of(1, 2).subSequence(1, 0); // throws IndexOutOfBoundsException List.of(1, 2).subSequence(-10, 1); // throws IndexOutOfBoundsException List.of(1, 2).subSequence(0, 10); // throws IndexOutOfBoundsException
 See also Seq.slice(int, int) which returns an empty sequence instead of throwing.
 Specified by:
 
 subSequence in interface LinearSeq<T>
 
 Specified by:
 
 subSequence in interface Seq<T>
 
 Parameters:
 
 beginIndex - the beginning index, inclusive
 
 endIndex - the end index, exclusive
 
 Returns:
 
 the specified subsequence
 - tail
```
Stream<T> tail()
```
 Description copied from interface: Traversable
 
 Drops the first element of a non-empty Traversable.
 
 Specified by:
 
 tail in interface LinearSeq<T>
 
 Specified by:
 
 tail in interface Seq<T>
 
 Specified by:
 
 tail in interface Traversable<T>
 
 Returns:
 
 A new instance of Traversable containing all elements except the first.
 - tailOption
```
default Option<Stream<T>> tailOption()
```
 Description copied from interface: Traversable
 
 Drops the first element of a non-empty Traversable and returns an Option.
 
 Specified by:
 
 tailOption in interface LinearSeq<T>
 
 Specified by:
 
 tailOption in interface Seq<T>
 
 Specified by:
 
 tailOption in interface Traversable<T>
 
 Returns:
 
 Some(traversable) or None if this is empty.
 - take
```
default Stream<T> take(int n)
```
 Description copied from interface: Traversable
 
 Takes the first n elements of this or all elements, if this length < n.
 The result is equivalent to sublist(0, max(0, min(length(), n))) but does not throw if n < 0 or n > length().
 In the case of n < 0 the empty instance is returned, in the case of n > length() this is returned.
 
 Specified by:
 
 take in interface LinearSeq<T>
 
 Specified by:
 
 take in interface Seq<T>
 
 Specified by:
 
 take in interface Traversable<T>
 
 Parameters:
 
 n - The number of elements to take.
 
 Returns:
 
 A new instance consisting of the first n elements of this or all elements, if this has less than n elements.
 - takeUntil
```
default Stream<T> takeUntil(java.util.function.Predicate<? super T> predicate)
```
 Description copied from interface: Traversable
 
 Takes elements until the predicate holds for the current element.
 Note: This is essentially the same as takeWhile(predicate.negate()). It is intended to be used with method references, which cannot be negated directly.
 
 Specified by:
 
 takeUntil in interface LinearSeq<T>
 
 Specified by:
 
 takeUntil in interface Seq<T>
 
 Specified by:
 
 takeUntil in interface Traversable<T>
 
 Parameters:
 
 predicate - A condition tested subsequently for this elements.
 
 Returns:
 
 a new instance consisting of all elements before the first one which does satisfy the given predicate.
 - takeWhile
```
default Stream<T> takeWhile(java.util.function.Predicate<? super T> predicate)
```
 Description copied from interface: Traversable
 
 Takes elements while the predicate holds for the current element.
 
 Specified by:
 
 takeWhile in interface LinearSeq<T>
 
 Specified by:
 
 takeWhile in interface Seq<T>
 
 Specified by:
 
 takeWhile in interface Traversable<T>
 
 Parameters:
 
 predicate - A condition tested subsequently for the contained elements.
 
 Returns:
 
 a new instance consisting of all elements before the first one which does not satisfy the given predicate.
 - takeRight
```
default Stream<T> takeRight(int n)
```
 Description copied from interface: Traversable
 
 Takes the last n elements of this or all elements, if this length < n.
 The result is equivalent to sublist(max(0, min(length(), length() - n)), n), i.e. takeRight will not throw if n < 0 or n > length().
 In the case of n < 0 the empty instance is returned, in the case of n > length() this is returned.
 
 Specified by:
 
 takeRight in interface LinearSeq<T>
 
 Specified by:
 
 takeRight in interface Seq<T>
 
 Specified by:
 
 takeRight in interface Traversable<T>
 
 Parameters:
 
 n - The number of elements to take.
 
 Returns:
 
 A new instance consisting of the last n elements of this or all elements, if this has less than n elements.
 - takeRightUntil
```
default Stream<T> takeRightUntil(java.util.function.Predicate<? super T> predicate)
```
 Description copied from interface: Seq
 
 Takes elements until the predicate holds for the current element, starting from the end.
 
 Specified by:
 
 takeRightUntil in interface LinearSeq<T>
 
 Specified by:
 
 takeRightUntil in interface Seq<T>
 
 Parameters:
 
 predicate - A condition tested subsequently for this elements, starting from the end.
 
 Returns:
 
 a new instance consisting of all elements after the last one which does satisfy the given predicate.
 - takeRightWhile
```
default Stream<T> takeRightWhile(java.util.function.Predicate<? super T> predicate)
```
 Description copied from interface: Seq
 
 Takes elements while the predicate holds for the current element, starting from the end.
 Note: This is essentially the same as takeRightUntil(predicate.negate()). It is intended to be used with method references, which cannot be negated directly.
 
 Specified by:
 
 takeRightWhile in interface LinearSeq<T>
 
 Specified by:
 
 takeRightWhile in interface Seq<T>
 
 Parameters:
 
 predicate - A condition tested subsequently for this elements, starting from the end.
 
 Returns:
 
 a new instance consisting of all elements after the last one which does not satisfy the given predicate.
 - transform
```
default  U transform(java.util.function.Function<? super Stream<T>,? extends U> f)
```
 Transforms this Stream.
 
 Type Parameters:
 
 U - Type of transformation result
 
 Parameters:
 
 f - A transformation
 
 Returns:
 
 An instance of type U
 
 Throws:
 
 java.lang.NullPointerException - if f is null
 - unzip
```
default <T1,T2> Tuple2<Stream<T1>,Stream<T2>> unzip(java.util.function.Function<? super T,Tuple2<? extends T1,? extends T2>> unzipper)
```
 Description copied from interface: Traversable
 
 Unzips this elements by mapping this elements to pairs which are subsequently split into two distinct sets.
 
 Specified by:
 
 unzip in interface LinearSeq<T>
 
 Specified by:
 
 unzip in interface Seq<T>
 
 Specified by:
 
 unzip in interface Traversable<T>
 
 Type Parameters:
 
 T1 - 1st element type of a pair returned by unzipper
 
 T2 - 2nd element type of a pair returned by unzipper
 
 Parameters:
 
 unzipper - a function which converts elements of this to pairs
 
 Returns:
 
 A pair of set containing elements split by unzipper
 - unzip3
```
default <T1,T2,T3> Tuple3<Stream<T1>,Stream<T2>,Stream<T3>> unzip3(java.util.function.Function<? super T,Tuple3<? extends T1,? extends T2,? extends T3>> unzipper)
```
 Description copied from interface: Traversable
 
 Unzips this elements by mapping this elements to triples which are subsequently split into three distinct sets.
 
 Specified by:
 
 unzip3 in interface Seq<T>
 
 Specified by:
 
 unzip3 in interface Traversable<T>
 
 Type Parameters:
 
 T1 - 1st element type of a triplet returned by unzipper
 
 T2 - 2nd element type of a triplet returned by unzipper
 
 T3 - 3rd element type of a triplet returned by unzipper
 
 Parameters:
 
 unzipper - a function which converts elements of this to pairs
 
 Returns:
 
 A triplet of set containing elements split by unzipper
 - update
```
default Stream<T> update(int index,
 T element)
```
 Description copied from interface: Seq
 
 Updates the given element at the specified index.
 
 Specified by:
 
 update in interface LinearSeq<T>
 
 Specified by:
 
 update in interface Seq<T>
 
 Parameters:
 
 index - an index
 
 element - an element
 
 Returns:
 
 a new Seq consisting of all previous elements, with a single one (at the given index), changed to the new value.
 - update
```
default Stream<T> update(int index,
 java.util.function.Function<? super T,? extends T> updater)
```
 Description copied from interface: Seq
 
 Updates the given element at the specified index using the specified function.
 
 Specified by:
 
 update in interface LinearSeq<T>
 
 Specified by:
 
 update in interface Seq<T>
 
 Parameters:
 
 index - an index
 
 updater - a function transforming the previous value
 
 Returns:
 
 a new Seq consisting of all previous elements, with a single one (at the given index), changed to the new value.
 - zip
```
default  Stream<Tuple2<T,U>> zip(java.lang.Iterable<? extends U> that)
```
 Description copied from interface: Traversable
 
 Returns a traversable formed from this traversable and another Iterable collection by combining corresponding elements in pairs. If one of the two iterables is longer than the other, its remaining elements are ignored.
 The length of the returned traversable is the minimum of the lengths of this traversable and that iterable.
 
 Specified by:
 
 zip in interface LinearSeq<T>
 
 Specified by:
 
 zip in interface Seq<T>
 
 Specified by:
 
 zip in interface Traversable<T>
 
 Type Parameters:
 
 U - The type of the second half of the returned pairs.
 
 Parameters:
 
 that - The Iterable providing the second half of each result pair.
 
 Returns:
 
 a new traversable containing pairs consisting of corresponding elements of this traversable and that iterable.
 - zipWith
```
default <U,R> Stream<R> zipWith(java.lang.Iterable<? extends U> that,
 java.util.function.BiFunction<? super T,? super U,? extends R> mapper)
```
 Description copied from interface: Traversable
 
 Returns a traversable formed from this traversable and another Iterable collection by mapping elements. If one of the two iterables is longer than the other, its remaining elements are ignored.
 The length of the returned traversable is the minimum of the lengths of this traversable and that iterable.
 
 Specified by:
 
 zipWith in interface LinearSeq<T>
 
 Specified by:
 
 zipWith in interface Seq<T>
 
 Specified by:
 
 zipWith in interface Traversable<T>
 
 Type Parameters:
 
 U - The type of the second parameter of the mapper.
 
 R - The type of the mapped elements.
 
 Parameters:
 
 that - The Iterable providing the second parameter of the mapper.
 
 mapper - a mapper.
 
 Returns:
 
 a new traversable containing mapped elements of this traversable and that iterable.
 - zipAll
```
default  Stream<Tuple2<T,U>> zipAll(java.lang.Iterable<? extends U> iterable,
 T thisElem,
 U thatElem)
```
 Description copied from interface: Traversable
 
 Returns a traversable formed from this traversable and another Iterable by combining corresponding elements in pairs. If one of the two collections is shorter than the other, placeholder elements are used to extend the shorter collection to the length of the longer.
 The length of the returned traversable is the maximum of the lengths of this traversable and that iterable.
 Special case: if this traversable is shorter than that elements, and that elements contains duplicates, the resulting traversable may be shorter than the maximum of the lengths of this and that because a traversable contains an element at most once.
 If this Traversable is shorter than that, thisElem values are used to fill the result. If that is shorter than this Traversable, thatElem values are used to fill the result.
 
 Specified by:
 
 zipAll in interface LinearSeq<T>
 
 Specified by:
 
 zipAll in interface Seq<T>
 
 Specified by:
 
 zipAll in interface Traversable<T>
 
 Type Parameters:
 
 U - The type of the second half of the returned pairs.
 
 Parameters:
 
 iterable - The Iterable providing the second half of each result pair.
 
 thisElem - The element to be used to fill up the result if this traversable is shorter than that.
 
 thatElem - The element to be used to fill up the result if that is shorter than this traversable.
 
 Returns:
 
 A new traversable containing pairs consisting of corresponding elements of this traversable and that.
 - zipWithIndex
```
default Stream<Tuple2<T,java.lang.Integer>> zipWithIndex()
```
 Description copied from interface: Traversable
 
 Zips this traversable with its indices.
 
 Specified by:
 
 zipWithIndex in interface LinearSeq<T>
 
 Specified by:
 
 zipWithIndex in interface Seq<T>
 
 Specified by:
 
 zipWithIndex in interface Traversable<T>
 
 Returns:
 
 A new traversable containing all elements of this traversable paired with their index, starting with 0.
 - zipWithIndex
```
default  Stream zipWithIndex(java.util.function.BiFunction<? super T,? super java.lang.Integer,? extends U> mapper)
```
 Description copied from interface: Traversable
 
 Zips this traversable with its indices by applying mapper provided.
 
 Specified by:
 
 zipWithIndex in interface LinearSeq<T>
 
 Specified by:
 
 zipWithIndex in interface Seq<T>
 
 Specified by:
 
 zipWithIndex in interface Traversable<T>
 
 Type Parameters:
 
 U - The type of the mapped elements.
 
 Parameters:
 
 mapper - a mapper.
 
 Returns:
 
 a new traversable containing elements of this traversable, zipped with indices, and mapped with mapper provided.
 - extend
```
default Stream<T> extend(T next)
```
 Extends (continues) this Stream with a constantly repeated value.
 
 Parameters:
 
 next - value with which the stream should be extended
 
 Returns:
 
 new Stream composed from this stream extended with a Stream of provided value
 - extend
```
default Stream<T> extend(java.util.function.Supplier<? extends T> nextSupplier)
```
 Extends (continues) this Stream with values provided by a Supplier
 
 Parameters:
 
 nextSupplier - a supplier which will provide values for extending a stream
 
 Returns:
 
 new Stream composed from this stream extended with values provided by the supplier
 - extend
```
default Stream<T> extend(java.util.function.Function<? super T,? extends T> nextFunction)
```
 Extends (continues) this Stream with a Stream of values created by applying consecutively provided Function to the last element of the original Stream.
 
 Parameters:
 
 nextFunction - a function which calculates the next value basing on the previous value
 
 Returns:
 
 new Stream composed from this stream extended with values calculated by the provided function

Modifier and Type	Interface	Description
`static class`	`Stream.Cons<T>`	Non-empty `Stream`, consisting of a `head`, and `tail`.
`static class`	`Stream.Empty<T>`	The empty Stream.

Interface Stream<T>

Nested Class Summary

Field Summary

Method Summary

Methods inherited from interface io.vavr.collection.Foldable

Methods inherited from interface io.vavr.Function1

Methods inherited from interface io.vavr.collection.LinearSeq

Methods inherited from interface io.vavr.collection.Seq

Methods inherited from interface io.vavr.collection.Traversable

Methods inherited from interface io.vavr.Value

Field Detail

serialVersionUID

Method Detail

collector

concat

concat

from

from

from

from

continually

iterate

iterate

cons

empty

narrow

of

of

tabulate

fill

fill

ofAll

ofAll

ofAll

ofAll

ofAll

ofAll

ofAll

ofAll

ofAll

ofAll

range

rangeBy

rangeBy

range

rangeBy

range

rangeBy

rangeClosed

rangeClosedBy

rangeClosedBy

rangeClosed

rangeClosedBy

rangeClosed

rangeClosedBy

transpose

unfoldRight

unfoldLeft

unfold

continually

append

appendAll

appendSelf

asJava

asJava

asJavaMutable

asJavaMutable

collect

combinations

combinations

crossProduct

cycle

cycle

distinct

distinctBy

distinctBy

drop

dropUntil

dropWhile

dropRight