package ex09_05;import java.awt.*;import java.awt.event.*;import javax.swing.*;public class Frame1 extends JFrame {  JPanel contentPane;  JLabel jLabel1 = new JLabel();  JButton jButton1 = new JButton();  JTextField jTextField1 = new JTextField();  JButton jButton2 = new JButton();  /**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(14, 16, 141, 29));    contentPane.setLayout(null);    this.setSize(new Dimension(400, 300));    this.setTitle("Frame Title");    jButton1.setText("取得資料");    jButton1.setBounds(new Rectangle(186, 11, 86, 29));    jButton1.addActionListener(new java.awt.event.ActionListener() {      public void actionPerformed(ActionEvent e) {        jButton1_actionPerformed(e);      }    });    jTextField1.setBounds(new Rectangle(17, 49, 142, 29));    jButton2.setText("設置資料");    jButton2.setBounds(new Rectangle(185, 52, 87, 29));    jButton2.addActionListener(new java.awt.event.ActionListener() {      public void actionPerformed(ActionEvent e) {        jButton2_actionPerformed(e);      }    });    contentPane.add(jLabel1, null);    contentPane.add(jButton1, null);    contentPane.add(jTextField1, null);    contentPane.add(jButton2, 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 jButton1_actionPerformed(ActionEvent e) {String test;//取得文本框內的資料test=jTextField1.getText();//設置標簽的顯示文本jLabel1.setText(test);  }  void jButton2_actionPerformed(ActionEvent e) {jTextField1.setText("我是文本框");  }}