JAVA入门到精通-第36讲-事件监听-坦克大战4

/**

 * 单事件源、多事件监听，多事件处理

 */

import java.awt.*;

import javax.swing.*;

import java.awt.event.*;

public class Window018 extends JFrame{

    //设定组件

    MyPanel mp=null;

    public static void main(String[] args) {

        Window018 win=new Window018();

    }

    public Window018(){

        //创建组件

        mp=new MyPanel();

        //注册监听

        this.addMouseListener(mp);

        this.addMouseMotionListener(mp);

        this.addKeyListener(mp);

        this.addWindowListener(mp);

        //加入组件

        this.add(mp);

        //设置窗体

        this.setTitle("事件多监听多处理");

        this.setSize(400, 300);

        this.setLocationRelativeTo(null);

        this.setVisible(true);

        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    }

}

//1、让MyPanel知道鼠标按下的消息，并且知道点击的位置(x,y)

//2、让MyPanel知道哪个键按下了

class MyPanel extends JPanel implements MouseListener,MouseMotionListener,KeyListener,WindowListener{

    public void paint(Graphics g){

        super.paint(g);

    }

    //鼠标点击(mouseClicked)

    public void mouseClicked(MouseEvent e) {

        System.out.println("鼠标点击了x="+e.getX()+"y="+e.getY());

    }

    //鼠标移动到MyPanel(mouseEntered)

    public void mouseEntered(MouseEvent e) {

        System.out.println("鼠标移动到MyPanel上了");

    }

    //鼠标离开MyPanel(mouseExited)

    public void mouseExited(MouseEvent e) {

        System.out.println("鼠标离开MyPanel上了");

    }

    //鼠标按下去(mousePressed)

    public void mousePressed(MouseEvent e) {

        System.out.println("鼠标被按下了");

    }

    //鼠标松开(mouseReleased)

    public void mouseReleased(MouseEvent e) {

        System.out.println("鼠标被松开了");

    }

    //鼠标拖拽(mouseDragged)

    public void mouseDragged(MouseEvent e) {

        System.out.println("鼠标拖拽x="+e.getX()+"y="+e.getY());

    }

    //鼠标移动(mouseMoved)

    public void mouseMoved(MouseEvent e) {

        System.out.println("鼠标移动时X="+e.getX()+"Y="+e.getY());

    }

    //键输入值(keyTyped)，F(1-12)无响应

    public void keyTyped(KeyEvent e) {

        System.out.println("按下了"+e.getKeyChar()+"键");

    }

    //键按下(keyPressed)

    public void keyPressed(KeyEvent e) {

        System.out.println("按下了"+e.getKeyChar()+"键");

    }

    //键松开(keyReleased)

    public void keyReleased(KeyEvent e) {

        System.out.println("按下了"+e.getKeyChar()+"键");

    }

    //打开窗口(windowOpened)

    public void windowOpened(WindowEvent e) {

        System.out.println("打开窗口(windowOpened)");

    }

    //窗口关闭(windowClosing)

    public void windowClosing(WindowEvent e) {

        System.out.println("窗口关闭(windowClosing)");

    }

    //窗口关闭(windowClosed)

    public void windowClosed(WindowEvent e) {

        System.out.println("窗口关闭(windowClosed)");

    }

    //窗口最小化(windowIconified)

    public void windowIconified(WindowEvent e) {

        System.out.println("窗口最小化(windowIconified)");

    }

    //恢复窗口(windowDeiconified)

    public void windowDeiconified(WindowEvent e) {

        System.out.println("恢复窗口(windowDeiconified)");

    }

    //激活窗口，使用窗口(windowActivated)

    public void windowActivated(WindowEvent e) {

        System.out.println("激活窗口(windowActivated)");

    }

    //窗口停用,切换窗口(windowDeactivated)

    public void windowDeactivated(WindowEvent e) {

        System.out.println("窗口停用(windowDeactivated)");

    }

}