/*
 * Copyright (c) 1995, 1996 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Permission to use, copy, modify, and distribute this software
 * and its documentation for NON-COMMERCIAL purposes and without
 * fee is hereby granted provided that this copyright notice
 * appears in all copies. Please refer to the file "copyright.html"
 * for further important copyright and licensing information.
 *
 * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
 * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
 * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
 * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
 * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
 */

 /*
  * Modification by BFC 97.07.18
  */


class CubbyHole {

    private int contents;         // this is the condition variable.
    private boolean empty = true;

    public synchronized int get() {
        while ( empty ) {
            try {
                wait();			// wait() is an instance method of
            } catch (InterruptedException e) {	  // class Object.
            }
        }
        empty = true;
        notifyAll();
        return contents;
    }

    public synchronized void put(int value) {
        while ( !empty ) {
            try {
                wait();
            } catch (InterruptedException e) {
            }
        }
        contents = value;
        empty = false;
        notifyAll();
    }
/*
    public int get() {
        
        while ( empty ) {
            try {
                //wait();
                Thread.sleep(100);
            } catch (InterruptedException e) {
            }
        }
        
        empty = true;
        //notifyAll();
        return contents;
    }

    public void put(int value) {
       
        while ( !empty ) {
            try {
                //wait();
                Thread.sleep(100);
            } catch (InterruptedException e) {
            }
        }
      
        contents = value;
        empty = false;
        //notifyAll();
    }
*/
}