import java.awt.*;

public class TestMultiPanel{
    public static void main(String[] args){
        MyFrame f = new MyFrame("test",300,300,400,300);
    }
}

public class MyFrame extends Frame{
    MyFrame (String s,int x,int y,int w,int h){
        setTitle(s);
        setLayout(null);
        Panel p1 = new Panel(null);
        Panel p2 = new Panel(null);
        Panel p3 = new Panel(null);
        Panel p4 = new Panel(null);
        p1.setBounds(0,0,w/2,h/2);
        p2.setBounds(0,w/2,w/2,h/2);
        p3.setBounds(w/2,0,w/2,h/2);
        p4.setBounds(w/2,h/2,w/2,h/2);
        p1.setBackground(Color.blue);
        p2.setBackground(Color.green);
        p3.setBackground(Color.yellow);
        p4.setBackground(Color.red);
        add(p1);
        add(p2);
        add(p3);
        add(p4);
        setBounds(x,y,w,h);
        setVisible(true);
        
    }
}