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java.util
Class Stack  

java.lang.Object
  java.util.AbstractCollection
      java.util.AbstractList
          java.util.Vector
              java.util.Stack

All Implemented Interfaces:

java.lang.Cloneable, Collection, java.lang.Iterable, List, RandomAccess, java.io.Serializable

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public class Stack

extends Vector

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Nested Class Summary

 

Nested classes inherited from class java.util.AbstractList

 

Field Summary
private static long	serialVersionUID           Compatible with JDK 1.0+.

 

Fields inherited from class java.util.Vector

capacityIncrement, elementCount, elementData

 

Fields inherited from class java.util.AbstractList

modCount

 

Constructor Summary

Stack()           This constructor creates a new Stack, initially empty

 

Method Summary
boolean	empty()           Tests if the stack is empty.
java.lang.Object	peek()           Returns the top Object on the stack without removing it.
java.lang.Object	pop()           Pops an item from the stack and returns it.
java.lang.Object	push(java.lang.Object item)           Pushes an Object onto the top of the stack.
int	search(java.lang.Object o)           Returns the position of an Object on the stack, with the top most Object being at position 1, and each Object deeper in the stack at depth + 1.

 

Methods inherited from class java.util.Vector

add, add, addAll, addAll, addElement, capacity, clear, clone, contains, containsAll, copyInto, elementAt, elements, ensureCapacity, equals, firstElement, get, hashCode, indexOf, indexOf, insertElementAt, isEmpty, lastElement, lastIndexOf, lastIndexOf, remove, remove, removeAll, removeAllElements, removeElement, removeElementAt, removeRange, retainAll, set, setElementAt, setSize, size, subList, toArray, toArray, toString, trimToSize

 

Methods inherited from class java.util.AbstractList

iterator, listIterator, listIterator

 

Methods inherited from class java.util.AbstractCollection

equals, hashCode, removeAllInternal, retainAllInternal

 

Methods inherited from class java.lang.Object

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

 

Methods inherited from interface java.util.List

iterator, listIterator, listIterator

 

Field Detail

serialVersionUID

private static final long serialVersionUID

Compatible with JDK 1.0+.

See Also:

Constant Field Values

Constructor Detail

Stack

public Stack()

This constructor creates a new Stack, initially empty

Method Detail

push

public java.lang.Object push(java.lang.Object item)

Pushes an Object onto the top of the stack. This method is effectively the same as addElement(item).

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pop

public java.lang.Object pop()

Pops an item from the stack and returns it. The item popped is removed from the Stack.

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peek

public java.lang.Object peek()

Returns the top Object on the stack without removing it.

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empty

public boolean empty()

Tests if the stack is empty.

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search

public int search(java.lang.Object o)

Returns the position of an Object on the stack, with the top most Object being at position 1, and each Object deeper in the stack at depth + 1.

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