brutil
Interface Queue

All Superinterfaces:

Collection

All Known Implementing Classes:

AbstractQueue

public interface Queue

extends Collection

Method Summary

java.lang.Object	dequeue() Remove an object from the front of the Queue.
void	enqueue(java.lang.Object o) Add an object to the back of the Queue.
boolean	isEmpty() Returns true if the Collection contains no elements, false otherwise
java.lang.Object	peek() Returns the first object in the Queue without removing it.

Methods inherited from interface brutil.Collection

clear, size

Method Detail

enqueue

public void enqueue(java.lang.Object o)

Add an object to the back of the Queue.

Parameters:

o - The object to be added.

dequeue

public java.lang.Object dequeue()

Remove an object from the front of the Queue.

Returns:

The object taken out of the Queue.

Throws:

java.util.NoSuchElementException - if this Queue is Empty.

isEmpty

public boolean isEmpty()

Description copied from interface: Collection

Returns true if the Collection contains no elements, false otherwise

Specified by:

isEmpty in interface Collection

Returns:

true if the Queue is empty, false otherwise.

peek

public java.lang.Object peek()

Returns the first object in the Queue without removing it.

Returns:

The first object in the Queue

Throws:

java.util.NoSuchElementException - if this Queue is Empty