frame1.java~12~

使用java实现的GUI图形界面的编程

package javabook.lecture1.myguitest;

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

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2003</p>
 * <p>Company: </p>
 * @author not attributable
 * @version 1.0
 */

public class Frame1 extends JFrame {
  JPanel contentPane;
  Label label1 = new Label();
  TextField textField1 = new TextField();
  TextField textField2 = new TextField();
  Button button1 = new Button();
  FlowLayout flowLayout1 = new FlowLayout();

  //Construct the frame
  public Frame1() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  //Component initialization
  private void jbInit() throws Exception  {
    contentPane = (JPanel) this.getContentPane();
    label1.setAlignment(Label.CENTER);
    label1.setText("请输入您的名字");
    contentPane.setLayout(flowLayout1);
    this.setSize(new Dimension(350, 250));
    this.setTitle("Frame Title");
    textField1.setColumns(15);
    textField1.setSelectionEnd(0);
    textField1.setSelectionStart(0);
    textField1.setText("");
    textField1.addActionListener(new Frame1_textField1_actionAdapter(this));
    textField2.setColumns(30);
    textField2.setEditable(false);
    button1.setLabel("关闭");
    contentPane.add(label1, null);
    contentPane.add(textField1, null);
    contentPane.add(textField2, null);
    contentPane.add(button1, 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 textField1_actionPerformed(ActionEvent e) {
    if(e.getSource()==textField1)//判断事件源是否为textField1。
      textField2.setText(textField1.getText()+", Java世界欢迎您！");
     else {
       dispose();//关闭窗口，释放资源。
       System.exit(0);//
     }
  }

}

class Frame1_textField1_actionAdapter implements java.awt.event.ActionListener {
  Frame1 adaptee;

  Frame1_textField1_actionAdapter(Frame1 adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.textField1_actionPerformed(e);
  }
}