dialog1.java.bak

java经典的源代码 我非常喜欢这个源代码 对于编程很有好处

//dialog1.java
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;


public class dialog1 extends JFrame {
  private JPanel contentPane;
  private FlowLayout Layout1 = new FlowLayout();
  private Button button1 = new Button("显示对话框");
  private TextField t=new TextField(10);
  private Dialog d=new Dialog(this,"请输入密码",false);
private Label l=new Label("请输入你的密码：");
private Button B1=new Button("确定");
  private Button B2=new Button("取消");
  FlowLayout gridLayout1 = new FlowLayout();
  //构造方法
  public dialog1() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    d.setSize(200,150);
    Panel p=new Panel();
    t.setEchoChar('*');
    p.add(l);
    p.add(t);
    p.add(B1);
    p.add(B2);
    d.add(p);
    contentPane = (JPanel) this.getContentPane();
    contentPane.setLayout(Layout1);
    this.setSize(new Dimension(400, 300));
    this.setTitle("Frame Title");
        //添加button1的事件监听
    button1.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        button1_actionPerformed(e);
      }
    });
        //添加B1的事件监听
    B1.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        B1_actionPerformed(e);
      }
    });
        //添加B2的事件监听
    B2.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        B2_actionPerformed(e);
      }
    });
    contentPane.add(button1);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      System.exit(0);
   }
  }
  void button1_actionPerformed(ActionEvent e) {
    d.show();
  }
  void B1_actionPerformed(ActionEvent e) {
    d.dispose();
  }
  void B2_actionPerformed(ActionEvent e) {
   t.setText("");
  }
  public static void main(String args[]){
    dialog1 f=new dialog1();
    f.show();
  }
  private void jbInit() throws Exception {
    this.getContentPane().setLayout(gridLayout1);
  }

}