Class java.util.Stack 
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Class java.util.Stack 

Object
   |
   +----Vector
           |
           +----java.util.Stack
public class Stack
extends Vector
The Stack class represents a last-in-first-out (LIFO) stack of objects.

Version:
1.17, 07/01/98
Author:
Jonathan Payne
Since:
JDK1.0

Constructor Index

o java.util.Stack()

Method Index

o empty()
Tests if this stack is empty.
o peek()
Looks at the object at the top of this stack without removing it from the stack.
o pop()
Removes the object at the top of this stack and returns that object as the value of this function.
o push(Object)
Pushes an item onto the top of this stack.
o search(Object)
Returns where an object is on this stack.

Constructors

o Stack 
public Stack()

Methods

o empty 
public boolean empty()
Tests if this stack is empty.

Returns:
true if this stack is empty; false otherwise.
Since:
JDK1.0
o peek 
public synchronized java.lang.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.
Throws: EmptyStackException
if this stack is empty.
Since:
JDK1.0
o pop 
public synchronized java.lang.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.
Throws: EmptyStackException
if this stack is empty.
Since:
JDK1.0
o push 
public java.lang.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.
Since:
JDK1.0
o search 
public synchronized int search(Object o)
Returns where an object is on this stack.

Parameters:
o - the desired object.
Returns:
the distance from the top of the stack where the object is] located; the return value -1 indicates that the object is not on the stack.
Since:
JDK1.0 
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