package passworddialog;import java.awt.*;import javax.swing.*;import com.borland.jbcl.layout.*;import java.awt.event.*;/** * <p>Title: Password Dialog Demo</p> * <p>Description: This is a Password Dialog demo</p> * <p>Copyright: Copyright (c) 2002</p> * <p>Company: d6-125</p> * @author Liujun * @version 1.0 */public class PasswordDialog extends JDialog {  JPanel panel1 = new JPanel();  XYLayout xYLayout1 = new XYLayout();  JLabel jLabel1 = new JLabel();  JLabel jLabel2 = new JLabel();  JTextField jTextField1 = new JTextField();  JButton jButton1 = new JButton();  JButton jButton2 = new JButton();  JPasswordField jPasswordField1 = new JPasswordField(); //定義私有變量OK   private boolean ok;  public PasswordDialog(Frame frame, String title, boolean modal) {    super(frame, title, modal);    try {      jbInit();      pack();    }    catch(Exception ex) {      ex.printStackTrace();    }  }  public PasswordDialog(JFrame parent)   {    this(parent, "連接數據庫", true);   }  public PasswordDialog() {    this(null, "連接數據庫", false);  }  void jbInit() throws Exception {    panel1.setLayout(xYLayout1);    jLabel1.setText("用戶名：");    jLabel2.setText("密  碼：");    jTextField1.setText("");    jButton1.setText("確認");    jButton1.addActionListener(new java.awt.event.ActionListener() {      public void actionPerformed(ActionEvent e) {        jButton1_actionPerformed(e);      }    });    jButton2.setToolTipText("");    jButton2.setText("取消");    jButton2.addActionListener(new java.awt.event.ActionListener() {      public void actionPerformed(ActionEvent e) {        jButton2_actionPerformed(e);      }    });    jPasswordField1.setText("");    panel1.add(jLabel2,  new XYConstraints(15, 72, -1, -1));    panel1.add(jLabel1, new XYConstraints(15, 32, -1, -1));    panel1.add(jTextField1, new XYConstraints(88, 32, 147, -1));    panel1.add(jButton1, new XYConstraints(39, 121, -1, -1));    panel1.add(jButton2, new XYConstraints(142, 119, -1, -1));    panel1.add(jPasswordField1,      new XYConstraints(88, 72, 147, -1));    this.getContentPane().add(panel1, BorderLayout.CENTER);  }   public boolean showDialog(ConnectInfo transfer)   {  jTextField1.setText(transfer.username);//設置用戶名初值      jPasswordField1.setText(transfer.password);//設置密碼初值      ok = false;//設置OK的初始值      show();//顯示對話框并得到結果      if (ok)//滿足條件則傳遞參數      {  transfer.username = jTextField1.getText();         transfer.password = new String(jPasswordField1.getPassword());      }      return ok;//返回傳遞參數與否   }  void jButton1_actionPerformed(ActionEvent e) {         ok = true;//傳遞參數         setVisible(false);  }  void jButton2_actionPerformed(ActionEvent e) {         setVisible(false);  }}