package GUi;

import java.awt.*;

public class GuI2 {
    public static void main(String[] args) {
        MyFrame new1 = new MyFrame(100,100,300,100,Color.BLUE);
        MyFrame new2 = new MyFrame(220,300,300,100,Color.green);
        MyFrame new3 = new MyFrame(330,500,300,100,Color.yellow);
        MyFrame new4 =new MyFrame(440,700,300,100,Color.red);
    }
}
class MyFrame extends Frame {
//    计数器
    static int id = 0;

    public MyFrame(int x,int y,int w,int h,Color color){
        super("窗口+"+(++id));

        setVisible(true);

//        大小
        setBounds(x,y,w,h);
//        设置背景
        setBackground(color);
    }
}