?? frame1.java~19~
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package keyevent;import java.awt.*;import java.awt.event.*;import javax.swing.*;public class Frame1 extends JFrame { JPanel contentPane; BorderLayout borderLayout1 = new BorderLayout(); Label label1 = new Label(); /**Construct the frame*/ public Frame1() { enableEvents(AWTEvent.WINDOW_EVENT_MASK); try { jbInit(); } catch(Exception e) { e.printStackTrace(); } } /**Component initialization*/ private void jbInit() throws Exception { //setIconImage(Toolkit.getDefaultToolkit().createImage(Frame1.class.getResource("[Your Icon]"))); contentPane = (JPanel) this.getContentPane(); label1.setFont(new java.awt.Font("Dialog", 1, 80)); label1.addKeyListener(new java.awt.event.KeyAdapter() { public void keyPressed(KeyEvent e) { label1_keyPressed(e); } }); contentPane.setLayout(borderLayout1); this.setSize(new Dimension(243, 177)); this.setTitle("KeyEvent演示程序"); this.addKeyListener(new java.awt.event.KeyAdapter() { public void keyPressed(KeyEvent e) { this_keyPressed(e); } }); contentPane.add(label1, BorderLayout.CENTER); } /**Overridden so we can exit when window is closed*/ protected void processWindowEvent(WindowEvent e) { super.processWindowEvent(e); if (e.getID() == WindowEvent.WINDOW_CLOSING) { System.exit(0); } } void label1_keyPressed(KeyEvent e) { } void this_keyPressed(KeyEvent e) { String s = ""; label1.setText(s+=e.getKeyChar()); }}?? 快捷鍵說(shuō)明
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