mouselistenerdemo.java~26~

jbuilder2006一书的所有源代码

package listener;

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

//应用鼠标接收器
public class MouseListenerDemo extends JFrame implements MouseListener {
  //声明容器类
  JPanel contentPane;
  JLabel jLabel1 = new JLabel();
  JLabel jLabel2 = new JLabel();
  JLabel jLabel3 = new JLabel();
  JTextField jTextField1 = new JTextField();
  JTextField jTextField2 = new JTextField();
  JTextField jTextField3 = new JTextField();

 public static void main(String[] args) {
   MouseListenerDemo MLFrame = new MouseListenerDemo();
   MLFrame.setVisible(true);
 }

 public MouseListenerDemo() {
   jbInit();
 }

 private void jbInit() {
   contentPane = (JPanel)this.getContentPane();
   contentPane.setLayout(null);
   this.setSize(new Dimension(400, 300));
   this.setTitle("鼠标接收器示例");
   jTextField1.setBounds(new Rectangle(143, 31, 196, 29));
   jTextField1.addMouseListener(this);
   jTextField2.setBounds(new Rectangle(143, 99, 196, 29));
   jTextField2.addMouseListener(this);
   jTextField3.setBounds(new Rectangle(143, 166, 196, 29));
   jTextField3.addMouseListener(this);
   jLabel1.setText("编辑框1");
   jLabel1.setBounds(new Rectangle(53, 31, 61, 16));
   jLabel2.setText("编辑框2");
   jLabel2.setBounds(new Rectangle(53, 99, 61, 16));
   jLabel3.setText("编辑框3");
   jLabel3.setBounds(new Rectangle(53, 166, 61, 16));
   contentPane.add(jTextField1, null);
   contentPane.add(jTextField2, null);
   contentPane.add(jTextField3, null);
   contentPane.add(jLabel1, null);
   contentPane.add(jLabel2, null);
   contentPane.add(jLabel3, null);
 }
 //当窗口关闭时清空内存
 protected void processWindowEvent(WindowEvent e) {
   if (e.getID() == WindowEvent.WINDOW_CLOSING) {
     System.exit(0);
   }
 }
 //鼠标按下事件的方法
 public void mousePressed(MouseEvent e) {
   displayInfo("鼠标键按下事件, 按键总数: " + e.getClickCount(), e);
 }
 //鼠标松开事件的方法
 public void mouseReleased(MouseEvent e) {
   displayInfo("鼠标键松开事件, 按键总数: " + e.getClickCount(), e);
 }
 //鼠标单击事件的方法
 public void mouseClicked(MouseEvent e) {
   displayInfo("鼠标单击事件, 按键总数: " + e.getClickCount(), e);
 }
 //鼠标进入事件的方法
 public void mouseEntered(MouseEvent e) {
   displayInfo("鼠标进入事件", e);
 }
 //鼠标离开事件的方法。
 public void mouseExited(MouseEvent e) {
   displayInfo("鼠标离开事件", e);
 }

 //信息显示方法
 void displayInfo(String infor, MouseEvent e) {
   //取得激发聚焦事件的控件
   JTextField tempTextField = (JTextField)e.getSource();
   //设置编辑框的字符串
   tempTextField.setText(infor);
 }
}