DataStructures
Class StackArray

java.lang.Object
  |
  +--DataStructures.StackArray

All Implemented Interfaces:

Stack

public class StackArray

extends java.lang.Object

implements Stack

An array implementation of a stack

Author:

Peter Williams

Constructor Summary

StackArray()

Method Summary

boolean	isEmpty() Indicates the status of the stack.
java.lang.Object	pop() Pops an item off the stack.
void	push(java.lang.Object item) Pushes an item onto the stack.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StackArray

public StackArray()

Method Detail

isEmpty

public boolean isEmpty()

Description copied from interface: Stack

Indicates the status of the stack.

Specified by:

isEmpty in interface Stack

Following copied from interface: DataStructures.Stack

Returns:

true if the stack is empty.

push

public void push(java.lang.Object item)

Description copied from interface: Stack

Pushes an item onto the stack.

Specified by:

push in interface Stack

Following copied from interface: DataStructures.Stack

Parameters:

item - the Object to be pushed.

pop

public java.lang.Object pop()

Description copied from interface: Stack

Pops an item off the stack.

Specified by:

pop in interface Stack

Following copied from interface: DataStructures.Stack

Returns:

the item most recently pushed onto the stack

Throws:

NoSuchElementException - if the stack is empty.