package com.sheng.lesson01;

import java.awt.*;

public class TestFrame2 {
    public static void main(String[] args) {

        MyFrame myFrame1 = new MyFrame(100, 100, 200, 200, Color.blue);
        MyFrame myFrame2 = new MyFrame(300, 100, 200, 200, Color.yellow);
        MyFrame myFrame3 = new MyFrame(100, 300, 200, 200, Color.green);
        MyFrame myFrame4 = new MyFrame(300, 300, 200, 200, Color.red);
    }
}

class MyFrame extends Frame {

    static int id = 0; // 可能存在多个窗口，我们需要一个计数器

    public MyFrame(int x,int y,int w,int h,Color color){
        super("Myframe"+(++id));
        setBackground(color);
        setBounds(x,y,w,h);
        setVisible((true));
    }
}