Yurttas/PL/OOL/Java/F/07/04/CubbyHole.java

 1/**
 2 *  Copyright(C) 1998
 3 *  All Rights Reserved. Salih Yurttas, ZCubes, BitsOfCode Software Systems, Inc..
 4 *
 5 *  Permission to use, copy, modify, and distribute this
 6 *  software and its documentation for EDUCATIONAL purposes
 7 *  and without fee is hereby granted provided that this
 8 *  copyright notice appears in all copies.
 9 *
10 *  @date   : January 1, 1998.
11 *  @author : Salih Yurttas.
12 */
13
14
15public class CubbyHole {
16
17  private int contents;
18  private boolean available=false;
19
20  public synchronized int get() {
21    while(!available)
22      try {
23        wait();
24      }
25      catch(InterruptedException iE) {}
26
27    available = false;
28    notifyAll();
29    return contents;
30  }
31
32  public synchronized void put(int value) {
33    while(available)
34      try {
35        wait();
36      }
37      catch(InterruptedException iE) {}
38
39    contents = value;
40    available = true;
41    notifyAll();
42  }
43
44}