lesson10 Paint画笔

 

ALT+INSET 使用 调用 方法   选override methods...

 

 

package com.zym.lesson10;

import javax.swing.*;
import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

// 画笔
public class TestPaint {
    public static void main(String[] args) {

        new MyPaint().LoadFrame();

    }
}

class MyPaint extends JFrame{

    public void LoadFrame(){
        setBounds(200,200,400,400);
        setTitle("lesson9 画笔");
        setVisible(true);
        addWindowListener(new WindowAdapter() {
                              //窗体关闭时做的事
                              @Override
                              public void windowClosing(WindowEvent e) {
                                  // super.windowClosed(e);
                                  System.exit(0);
                              }
                          }
        );


    }

    // ALT+ INSERT 快捷键
    //画笔
    @Override
    public void paint(Graphics g) {
        super.paint(g);
        //需要颜色
        g.setColor(Color.RED);
        //画空心的圆
        g.drawOval(100,100,100,100);
        //画实心的圆
        g.fillOval(200,200,100,100);
        //
        g.setColor(Color.cyan);
        g.fillRect(300,300,100,200);
        //养成习惯，用完还原最初的颜色

    }


}