/* Listing4408.java */ import java.awt.*; import java.awt.event.*; import java.beans.*; public class Listing4408 extends Frame { public Listing4408() { //Initialisierung super("BeanPropertiesTest"); setLayout(new FlowLayout()); setBackground(Color.lightGray); addWindowListener( new WindowAdapter() { public void windowClosing(WindowEvent event) { System.exit(0); } } ); //Dialogelemente hinzufügen LightedPushButton button1 = new LightedPushButton(); VetoSwitch veto1 = new VetoSwitch(); final LightBulb bulb1 = new LightBulb(); add(button1); add(veto1); add(bulb1); button1.addPropertyChangeListener( new PropertyChangeListener() { public void propertyChange(PropertyChangeEvent e) { if (e.getPropertyName().equals("lighton")) { Boolean on = (Boolean)e.getNewValue(); bulb1.setLightOn(on.booleanValue()); } } } ); button1.addVetoableChangeListener(veto1); } //---main------------------------------------------------- public static void main(String[] args) { Listing4408 frm = new Listing4408(); frm.setLocation(100, 100); frm.pack(); frm.setVisible(true); } }