TestMultPanel

//TestMultiPanel.java
import java.awt.*;

public class TestMultPanel{
public static void main(String[] args){
new MyFrame2("Hello",300,300,400,400);
}
}

class MyFrame2 extends Frame{
private Panel p1,p2,p3,p4;
MyFrame2(String s,int x,int y,int w,int h){
super(s);
p1=new Panel(null);
p2=new Panel(null);
p3=new Panel(null);
p4=new Panel(null);
p1.setBounds(0,0,w/2,h/2);
p2.setBounds(0,h/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.RED);
p4.setBackground(Color.GRAY);
add(p1);
add(p2);
add(p3);
add(p4);
setBounds(x,y,w,h);
setVisible(true);
}
}

运行效果：