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/*
* 功能：事件监听事例：演示鼠标、鼠标移动、键盘按键、窗口事件监听，注册，结果
*/
package com.bj.event;
import java.awt.*;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
import javax.swing.*;
public class EventPractice extends JFrame {
//定义
MyPanels mp=null;
public static void main(String [] agrs){
EventPractice ep=new EventPractice();
}
//构造函数
public EventPractice(){
mp=new MyPanels();
this.add(mp);
this.addMouseListener(mp);
this.addKeyListener(mp);
this.addMouseMotionListener(mp);
this.addWindowListener(mp);
this.setSize(200,200);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setVisible(true);
}
}
//让MyPanels知道鼠标消息，进行监听
//1、知道点击位置2、知道按键信息
//3、知道鼠标移动、拖拽 4、窗口操作
class MyPanels extends JPanel implements MouseListener,KeyListener,MouseMotionListener,WindowListener{
public void paint(Graphics g){
super.paint(g);
}
//鼠标点击
@Override
public void mouseClicked(MouseEvent e) {
// TODO Auto-generated method stub
System.out.println("鼠标点击：X="+e.getX()+" Y="+e.getY());
}
//鼠标按下
@Override
public void mousePressed(MouseEvent e) {
// TODO Auto-generated method stub
System.out.println("鼠标按下：");
}
//鼠标抬起
@Override
public void mouseReleased(MouseEvent e) {
// TODO Auto-generated method stub
System.out.println("鼠标抬起：");
}
//鼠标进入一个面板时
@Override
public void mouseEntered(MouseEvent e) {
// TODO Auto-generated method stub
System.out.println("鼠标进入面板：");
}
//鼠标退出
@Override
public void mouseExited(MouseEvent e) {
// TODO Auto-generated method stub
System.out.println("鼠标退出：");
}
//按键具体键（仅仅输入字符、数字例如w s p 会被调用，其他例如F1 Delete..不会触发方法）
@Override
public void keyTyped(KeyEvent e) {
// TODO Auto-generated method stub
System.out.println("按键具体键："+e.getKeyChar());
}
//按键按下
@Override
public void keyPressed(KeyEvent e) {
// TODO Auto-generated method stub
System.out.println("按键按下："+e.getKeyChar());
}
//按键抬起
@Override
public void keyReleased(KeyEvent e) {
// TODO Auto-generated method stub
System.out.println("按键抬起："+e.getKeyChar());
}
//鼠标拖拽
@Override
public void mouseDragged(MouseEvent e) {
// TODO Auto-generated method stub
System.out.println("鼠标拖拽");
}
//鼠标移动
@Override
public void mouseMoved(MouseEvent e) {
// TODO Auto-generated method stub
System.out.println("鼠标移动：X="+e.getX()+" Y="+e.getY());
}
//打开窗口
@Override
public void windowOpened(WindowEvent e) {
// TODO Auto-generated method stub
System.out.println("打开窗口");
}
//窗口正关闭
@Override
public void windowClosing(WindowEvent e) {
// TODO Auto-generated method stub
System.out.println("窗口正关闭");
}
//窗口关闭
@Override
public void windowClosed(WindowEvent e) {
// TODO Auto-generated method stub
System.out.println("窗口关闭");
}
@Override
public void windowIconified(WindowEvent e) {
// TODO Auto-generated method stub
}
@Override
public void windowDeiconified(WindowEvent e) {
// TODO Auto-generated method stub
}
@Override
public void windowActivated(WindowEvent e) {
// TODO Auto-generated method stub
}
@Override
public void windowDeactivated(WindowEvent e) {
// TODO Auto-generated method stub
}
}