public class Panel extends Container implements Accessible

import java.awt.*;
public class PanelExample {
 PanelExample()
    {
    Frame f= new Frame("Panel Example");  
    Panel panel=new Panel();
    panel.setBounds(40,80,200,200);  
    panel.setBackground(Color.gray);
    Button b1=new Button("Button 1");   
    b1.setBounds(50,100,80,30);  
    b1.setBackground(Color.yellow); 
    Button b2=new Button("Button 2"); 
    b2.setBounds(100,100,80,30);  
    b2.setBackground(Color.green); 
    panel.add(b1); panel.add(b2);
    f.add(panel);
    f.setSize(400,400);  
    f.setLayout(null);  
    f.setVisible(true);  
    }
    public static void main(String args[])
    {
    new PanelExample();
    }
}