XfaForm.Stack2 (openpdf 1.4.2 API)

java.lang.Object
- java.util.AbstractCollection<E>
- - java.util.AbstractList<E>
  - - java.util.ArrayList<String>
    - - com.lowagie.text.pdf.XfaForm.Stack2

All Implemented Interfaces:

Serializable, Cloneable, Iterable<String>, Collection<String>, List<String>, RandomAccess

Enclosing class:

XfaForm
```
public static class XfaForm.Stack2
extends ArrayList<String>
```
Another stack implementation. The main use is to facilitate the porting to other languages.

See Also:

Serialized Form

Field Summary
- Fields inherited from class java.util.AbstractList
  modCount

Constructor Summary

Constructors
Constructor Description

Stack2()

Method Summary

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

Methods inherited from class java.util.ArrayList
add, add, addAll, addAll, clear, clone, contains, ensureCapacity, equals, forEach, get, hashCode, indexOf, isEmpty, iterator, lastIndexOf, listIterator, listIterator, remove, remove, removeAll, removeIf, removeRange, replaceAll, retainAll, set, size, sort, spliterator, subList, toArray, toArray, trimToSize

Methods inherited from class java.util.AbstractCollection
containsAll, toString

Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection
parallelStream, stream, toArray

Methods inherited from interface java.util.List
containsAll

- Constructor Detail
  - Stack2
```
public Stack2()
```
- Method Detail
  - peek
```
public String 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 String 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 String push(String 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