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- /*
- Copyright (c) Xerox Corporation 1998-2002. All rights reserved.
-
- Use and copying of this software and preparation of derivative works based
- upon this software are permitted. Any distribution of this software or
- derivative works must comply with all applicable United States export control
- laws.
-
- This software is made available AS IS, and Xerox Corporation makes no warranty
- about the software, its performance or its conformity to any specification.
- */
-
- package observer;
-
- public class Demo {
- public static void main(String[] args) {
-
- Display display = new Display();
- Button b1 = new Button(display);
- Button b2 = new Button(display);
- ColorLabel c1 = new ColorLabel(display);
- ColorLabel c2 = new ColorLabel(display);
- ColorLabel c3 = new ColorLabel(display);
-
- b1.addObserver(c1);
- b1.addObserver(c2);
- b2.addObserver(c3);
- }
- }
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