Class XfaForm.Stack2

java.lang.Object

java.util.AbstractCollection

java.util.AbstractList

java.util.ArrayList

com.aowagie.text.pdf.XfaForm.Stack2

All Implemented Interfaces:

Serializable, Cloneable, Iterable, Collection, List, RandomAccess, SequencedCollection

Enclosing class:

XfaForm

public static class XfaForm.Stack2
extends ArrayList

Another stack implementation. The main use is to facilitate the porting to other languages.

Author:

Paulo Soares (psoares@consiste.pt)

See Also:

• Serialized Form

Field Summary

Fields inherited from class AbstractList

modCount

Constructor Summary

Constructors

Constructor	Description
Stack2()

Method Summary

Modifier and Type	Method	Description
boolean	empty()	Tests if this stack is empty.
Object	peek()	Looks at the object at the top of this stack without removing it from the stack.
Object	pop()	Removes the object at the top of this stack and returns that object as the value of this function.
Object	push(Object item)	Pushes an item onto the top of this stack.

Methods inherited from class ArrayList

add, add, addAll, addAll, addFirst, addLast, clear, clone, contains, ensureCapacity, equals, forEach, get, getFirst, getLast, hashCode, indexOf, isEmpty, iterator, lastIndexOf, listIterator, listIterator, remove, remove, removeAll, removeFirst, removeIf, removeLast, removeRange, replaceAll, retainAll, set, size, sort, spliterator, subList, toArray, toArray, trimToSize

Methods inherited from class AbstractCollection

containsAll, toString

Methods inherited from class Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface Collection

parallelStream, stream, toArray

Methods inherited from interface List

containsAll, reversed

Constructor Details

Stack2

public Stack2()

Method Details

peek

public Object peek()

Looks at the object at the top of this stack without removing it from the stack.

Returns:

the object at the top of this stack

pop

public Object pop()

Removes the object at the top of this stack and returns that object as the value of this function.

Returns:

the object at the top of this stack

push

public Object push(Object item)

Pushes an item onto the top of this stack.

Parameters:

item - the item to be pushed onto this stack

Returns:

the item argument

empty

public boolean empty()

Tests if this stack is empty.

Returns:

true if and only if this stack contains no items; false otherwise