?? queue.java
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/*
Netwar
Copyright (C) 2002 Daniel Grund, Kyle Kakligian, Jason Komutrattananon, & Brian Hibler.
This file is part of Netwar.
Netwar is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
Netwar is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Netwar; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package netwar.utils;
/** A Queue ADT
* @author Kyle Kakligian
*/
public interface Queue {
/** Clears the queue.
*/
public void clear();
/** Enqueues an Object.
* @param it The Object to enqueue.
*/
public void enqueue(Object it);
/** Dequeues an Object.
* @return The dequeued Object.
*/
public Object dequeue();
/** Peeks at the next Object to dequeue.
* @return The next Object to dequeue.
*/
public Object peek();
/** Returns whether or not the queue is empty.
* @return true if empty.
*/
public boolean isEmpty();
/** Internally shrinks the memory footprint.
*/
public void shrink();
/** Internally resizes the queue to hold at least the given number of items
* @param sz The minimun number of Objects for the queue.
*/
public void resize(int sz);
}
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