package ex08_05;import java.awt.*;import java.awt.event.*;import javax.swing.*;public class Frame1 extends JFrame {  JPanel contentPane;  JLabel jLabel1 = new JLabel();  /**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();    jLabel1.setText("jLabel1");    jLabel1.setBounds(new Rectangle(36, 38, 41, 19));    contentPane.setLayout(null);    this.setSize(new Dimension(400, 300));    this.setTitle("Frame Title");    this.addKeyListener(new java.awt.event.KeyAdapter() {      public void keyReleased(KeyEvent e) {        this_keyReleased(e);      }    });    this.addWindowListener(new java.awt.event.WindowAdapter() {      public void windowOpened(WindowEvent e) {        this_windowOpened(e);      }    });    contentPane.add(jLabel1, null);  }  /**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 this_windowOpened(WindowEvent e) {  //建立圖像對象Icon pic=new ImageIcon("C:\\jbsample\\twbts.gif");//設置jLabel1組件的大小jLabel1.setSize(pic.getIconWidth(),pic.getIconHeight());//將圖片載入到jLabel1組件中jLabel1.setIcon(pic);  }  void this_keyReleased(KeyEvent e) {switch (e.getKeyCode()){//向上移動case KeyEvent.VK_F1:jLabel1.setLocation(jLabel1.getX(),jLabel1.getY()-jLabel1.getHeight());break;//向下移動case KeyEvent.VK_F2:jLabel1.setLocation(jLabel1.getX(),jLabel1.getY()+jLabel1.getHeight());break;//向左移動case KeyEvent.VK_F3:jLabel1.setLocation(jLabel1.getX()-jLabel1.getWidth(),jLabel1.getY());break;//向右移動case KeyEvent.VK_F4:jLabel1.setLocation(jLabel1.getX()+jLabel1.getWidth(),jLabel1.getY());break;}  }}