brutil
Class AbstractQueue

java.lang.Object
  |
  +--brutil.AbstractListing
        |
        +--brutil.AbstractQueue

All Implemented Interfaces:

Collection, Queue

Direct Known Subclasses:

ArrayQueue, LinkedQueue

public abstract class AbstractQueue

extends AbstractListing

implements Queue

Fields inherited from class brutil.AbstractListing

list

Constructor Summary

AbstractQueue()

Method Summary

java.lang.Object	dequeue() Remove an object from the front of the Queue.
void	enqueue(java.lang.Object elt) Add an object to the back of the Queue.
java.lang.Object	peek() Returns the first object in the Queue without removing it.

Methods inherited from class brutil.AbstractListing

clear, isEmpty, listFactory, size

Methods inherited from class java.lang.Object

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

Methods inherited from interface brutil.Queue

isEmpty

Methods inherited from interface brutil.Collection

clear, size

Constructor Detail

AbstractQueue

public AbstractQueue()

Method Detail

enqueue

public void enqueue(java.lang.Object elt)

Add an object to the back of the Queue.

Specified by:

enqueue in interface Queue

Parameters:

elt - The object to be added.

dequeue

public java.lang.Object dequeue()

Remove an object from the front of the Queue.

Specified by:

dequeue in interface Queue

Returns:

The object taken out of the Queue.

Throws:

NoSuchElementException - if this Queue is Empty.

peek

public java.lang.Object peek()

Returns the first object in the Queue without removing it.

Specified by:

peek in interface Queue

Returns:

The first object in the Queue

Throws:

NoSuchElementException - if this Queue is Empty