ListUtil

java.lang.Object

edu.jas.util.ListUtil

public class ListUtil extends Object

List utilities. For example map functor on list elements.

Constructor Summary

Constructors

Constructor

Description

ListUtil()
Method Summary

Modifier and Type

Method

Description

static <C> boolean

equals(Iterable<C> a, Iterable<C> b)

Test two iterables for equal contents and sequence.

static <C> List<C>

fill(int n, C e)

Create a list of given length and content.

static <C extends Element<C>, D extends Element<D>> List<D>

map(List<C> list, UnaryFunctor<C,D> f)

Map a unary function to the list.

static <C> List<List<C>>

tupleFromList(List<List<C>> A)

Tuple from lists.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- ListUtil
  
  public ListUtil()
Method Details
- map
  
  public static <C extends Element<C>, D extends Element<D>> List<D> map(List<C> list, UnaryFunctor<C,D> f)
  
  Map a unary function to the list.
  
  Parameters:
  
  f - evaluation functor.
  
  Returns:
  
  new list elements f(list(i)).
- tupleFromList
  
  public static <C> List<List<C>> tupleFromList(List<List<C>> A)
  
  Tuple from lists.
  
  Parameters:
  
  A - list of lists.
  
  Returns:
  
  new list with tuples (a_1,...,an) with ai in Ai, i=0,...,length(A)-1.
- fill
  
  public static <C> List<C> fill(int n, C e)
  
  Create a list of given length and content.
  
  Parameters:
  
  n - length of new list
  
  e - object to be filled in
  
  Returns:
  
  list (e, ..., e) of length n
- equals
  
  public static <C> boolean equals(Iterable<C> a, Iterable<C> b)
  
  Test two iterables for equal contents and sequence.
  
  Parameters:
  
  a - iterable
  
  b - iterable
  
  Returns:
  
  true, if a equals b in sequence and content, else false.