java.util
Class Stack

java.lang.Object
  |
  +--java.util.Vector
        |
        +--java.util.Stack

public class Stack

extends Vector

Implement a stack

Field Summary

Fields inherited from class java.util.Vector

capacityIncrement, elementCount, elementData

Constructor Summary

Stack()

Method Summary

boolean	empty() Test to see if this is empty
Object	peek() Peek the object at the top of the stack
Object	pop() Pop an object from the stack
Object	push(Object item) Push an object on to the stack
int	search(Object o) Search the stack for an object

Methods inherited from class java.util.Vector

addElement, capacity, contains, copyInto, elementAt, elements, ensureCapacity, firstElement, indexOf, indexOf, insertElementAt, isEmpty, lastElement, lastIndexOf, lastIndexOf, removeAllElements, removeElement, removeElementAt, setElementAt, setSize, size, toString, trimToSize

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Stack

public Stack()

Method Detail

push

public Object push(Object item)

Push an object on to the stack

Parameters:

item - The item to push

Returns:

the item pushed

pop

public Object pop()

Pop an object from the stack

Returns:

the item popped

peek

public Object peek()

Peek the object at the top of the stack

Returns:

the item peeked

empty

public boolean empty()

Test to see if this is empty

Returns:

true if it is empty

search

public int search(Object o)

Search the stack for an object

Returns:

the position on the stack or -1. The top of stack is 1