mousedraw.java

Java课程中所有的可运行程序 全部都是java课程中所涉及到的源码

import java.awt.event.*;
import java.awt.*;
import java.applet.*;

public class MouseDraw extends Applet implements MouseMotionListener{
    int x=-1,y=-1,con=3;

    public void init(){
        addMouseMotionListener(this);}

    public void paint(Graphics g){
        g.fillOval(x,y,con,con);}

        public void mouseDragged(MouseEvent e){
            x=(int)e.getX();
            y=(int)e.getY();
            repaint();
        }



        public void mouseMoved(MouseEvent e){
        }


        public void update(Graphics g){
            paint(g);}



        }