import java.awt.* ;
import javax.swing.* ;
 
public class FrameTest extends JFrame {
	JButton b1 = new JButton ( "Hello 1" ) ;
	JButton b2 = new JButton ( "Hello 2" ) ;
	JTabbedPane tab = new JTabbedPane() ;
	JPanel p1 = new JPanel ( ) ;
	JPanel p2 = new JPanel ( ) ;
	public FrameTest () {
		setBounds ( 20, 20 , 300, 300 ) ;
		
		p1.add ( b1 ) ;
		p2.add ( b2 ) ;
						
		tab.addTab ( "Tab 1", p1 );
		tab.addTab ( "Tab 2", p2 );		
		
		getContentPane().add ( tab , "Center" ) ;
		
		// Add change lister to your tab so that you get notified
		// when you click on any tab page
		tab.addChangeListener ( new javax.swing.event.ChangeListener ( ) {				         
				public void stateChanged( javax.swing.event.ChangeEvent e) {
					System.out.println ( "selected Index:" + tab.getSelectedIndex ( ) ) ;
				}
		
		}
		) ;
		
	}
	
	public static void main ( String[] args ) {
		FrameTest f = new FrameTest () ;
		f.show ( ) ;
	}
}