JTabbedPane

Learn to use JTabbedPane.

import javax.swing.*;
import javax.swing.event.*;

====================

JTabbedPane jtp = new JTabbedPane();

JPanel jp_first = new JPanel();
....
// add components to jp_first
....

JPanel jp_second = new JPanel();
....
// add components to jp_second
....

// Add panels to jtp
jtp.add("First", jp_first);
jtp.add("Second", jp_second);

// Set the second tab as selected
jtp.setSelectedIndex(1);


// Add ChangeListener
jtp.addChangeListener(
	new ChangeListener(){
		public void stateChanged(ChangeEvent ce){
			// your code
		}
	}
);