Including more than two Panels in a JFrame?

Question

We are working on a project where we encountered a problem with including more than two Panels on the same JFrame .What we want is one Panel above the other.

Can the

Answer 1

//you can also use card Layout, that enables you to add multiple card-panels on Main panel.

CardLayout cl;
JPanel main,one,two,three;
JButton button1,button2;

cl = new CardLayout();
main.setLayout(cl);

main.add(one,"1");
main.add(two,"2");
main.add(three,"3");

cl.show(main,"1");

public void actionPerformed(ActionEvent e){
 if(e.getSource() == button1)
     cl.show(main,"2");
 else if(e.getSource() == button2)
     cl.show(main,"3");
}