画笔

package com.zhang.Study.画笔;

import java.awt.*;

public class PanitUse {
    public static void main(String[] args) {
        new  Mypaint().LoadFrame();
    }
}
    class  Mypaint extends Frame{
        public void LoadFrame(){
            setBounds(400,400,400,400);
            setVisible(true);
        }

        //画笔
        @Override
        public void paint(Graphics g) {
            g.setColor(Color.red);//设置画笔颜色
//            g.drawOval(100,100,100,100);//画一个空心圆
            g.drawOval(100,100,100,100);//画一个实心圆
            g.setColor(Color.green);//重新设置画笔颜色
            g.draw3DRect(100,200,100,100,true);//画一个3d矩形
            
        }
    }