GUI编程之画笔paint工具

以下为画笔paint的最基础操作。

package com.zhang.lesson03;

import java.awt.*;

public class TestPaint {
    public static void main(String[] args) {
        new MyPaint().loadFrame();
    }
}
class MyPaint extends Frame{
    public void loadFrame (){
        setBounds(200,200,600,500);
        setVisible(true);
    }
    //画笔
    @Override
    public void paint(Graphics g) {
        //画笔，需要有颜色
        g.setColor(Color.BLUE);
        g.drawOval(100,100,100,100);
        g.fillOval(200,100,100,100);
        g.setColor(Color.YELLOW);
        g.fillRect(300,100,100,100);
        //画笔用完将他还原
    }
}