import java.util.*;
import java.io.*;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class PanelTest extends JFrame
{
public static void main(String args[])
{
PanelTest p1 = new PanelTest();
p1.setVisible(true);
}
PanelTest()
{
JPanel panel = new JPanel(new GridLayout(2,0));
(this.myPanel[0]).add(new JButton("hello1"));
panel.add(myPanel[0]);
(this.myPanel[1]).add(new JButton("hello1"));
panel.add(myPanel[1]);
add(panel, BorderLayout.CENTER);
pack();
}
JPanel[] myPanel = new JPanel[2];
}