?? classlistenerframe.java~18~
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package listener;import java.awt.*;import java.awt.event.*;import javax.swing.*;//對類引用ActionListener動作接收器public class ClassListenerFrame extends JFrame implements ActionListener { JPanel contentPane; JButton jButton1 = new JButton(); public ClassListenerFrame() { try { jbInit(); } catch(Exception e) { e.printStackTrace(); } } private void jbInit() throws Exception { contentPane = (JPanel) this.getContentPane(); jButton1.setBounds(new Rectangle(112, 118, 171, 48)); jButton1.setText("jButton1"); contentPane.setLayout(null); this.setSize(new Dimension(400, 300)); this.setTitle("對類引用事件接收器示例"); contentPane.add(jButton1, null); } protected void processWindowEvent(WindowEvent e) { if (e.getID() == WindowEvent.WINDOW_CLOSING) { System.exit(0); } } //重載動作接收器的方法 public void actionPerformed(ActionEvent e) { JOptionPane.showMessageDialog(null, ((JButton)e.getSource()).getName() + "控件被單擊"); }}?? 快捷鍵說明
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