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Java Source | 1997-07-13 | 1.8 KB | 60 lines |
- /*
- * Copyright (c) 1995-1997 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.
- */
- import java.awt.*;
- import java.applet.Applet;
-
- public class ButtonDemo extends Applet {
-
- Button b1, b2, b3;
-
- public void init() {
- b1 = new Button();
- b1.setLabel("Disable middle button");
-
- b2 = new Button("Middle button");
-
- b3 = new Button("Enable middle button");
- b3.disable();
-
- //Add Components to the Applet, using the default FlowLayout.
- add(b1);
- add(b2);
- add(b3);
-
- //Necessary when adding buttons to an already visible container:
- validate();
- }
-
- public boolean action(Event e, Object arg) {
- Object target = e.target;
-
- if (target == b1) { //They clicked "Disable middle button"
- b2.disable();
- b1.disable();
- b3.enable();
- return true;
- }
- if (target == b3) { //They clicked "Enable middle button"
- b2.enable();
- b1.enable();
- b3.disable();
- return true;
- }
- return false;
- }
- }
-