point.java

是一个综合开发程序,可以做为系统研究人员的参考

import java.awt.*;
import java.awt.event.*;
public class point{
    static Frame fram=new Frame("point");
    static Label label=new Label("liangdingsdkjskldjfk");
    public static void main(String[] args){
        fram.setSize(450,300);
        fram.setLayout(null);
        fram.setLocation(260,150);
        label.setBounds(150,250,300,20);
        fram.add(label);
        fram.addMouseMotionListener(new action());
        fram.addMouseListener(new win());
        fram.show();
    }
    //关于监听器的使用有两点的不同
    //如果是Listener 则用 implements
    //如果是Adapter  则用 extends
    static class action extends MouseMotionAdapter{
        public void mouseMoved(MouseEvent e){
            label.setText("X轴坐标 "+e.getX()+"    "+"Y轴坐标 "+e.getY());
        }
    }
    static class win extends MouseAdapter{
        public void mouseClicked(MouseEvent e){
            System.exit(0);
        }
    }
}