Yes. But this is not covered in these notes.
Here is the code for the example user interface. There is no application code.
import java.awt.* ; import java.awt.event.*; import javax.swing.*; public class MorningNoonNight extends JFrame implements ActionListener { JLabel lData1 = new JLabel("Data Item 1"); JTextField txData1 = new JTextField( 7 ); JPanel Panel1 = new JPanel(); JLabel lData2 = new JLabel("Data Item 2"); JTextField txData2 = new JTextField( 7 ); JPanel Panel2 = new JPanel(); JLabel lData3 = new JLabel("Data Item 3"); JTextField txData3 = new JTextField( 7 ); JPanel Panel3 = new JPanel(); JLabel lData4 = new JLabel("Data Item 4"); JTextField txData4 = new JTextField( 7 ); JPanel Panel4 = new JPanel(); JLabel lData5 = new JLabel("Data Item 5"); JTextField txData5 = new JTextField( 7 ); JPanel Panel5 = new JPanel(); JLabel lData6 = new JLabel("Data Item 6"); JTextField txData6 = new JTextField( 7 ); JPanel Panel6 = new JPanel(); JPanel dataPan = new JPanel(); JButton butMorn = new JButton("Morning"); JButton butNoon = new JButton("Noon"); JButton butNite = new JButton("Night"); JPanel leftPanel = new JPanel(); JPanel rightPanel = new JPanel(); JPanel butPan = new JPanel(); public MorningNoonNight() { setTitle( "Morning Noon Night" ); Panel1.add( lData1 ); Panel1.add( txData1 ); Panel2.add( lData2 ); Panel2.add( txData2 ); Panel3.add( lData3 ); Panel3.add( txData3 ); Panel4.add( lData4 ); Panel4.add( txData4 ); Panel5.add( lData5 ); Panel5.add( txData5 ); Panel6.add( lData6 ); Panel6.add( txData6 ); butPan.setLayout( new BoxLayout( butPan, BoxLayout.X_AXIS ) ); butPan.add( butMorn ); butPan.add( butNoon ); butPan.add( butNite ); leftPanel.setLayout( new BoxLayout( leftPanel, BoxLayout.Y_AXIS ) ); leftPanel.add( Panel1 ); leftPanel.add( Panel2 ); leftPanel.add( Panel3 ); rightPanel.setLayout( new BoxLayout( rightPanel, BoxLayout.Y_AXIS ) ); rightPanel.add( Panel4 ); rightPanel.add( Panel5 ); rightPanel.add( Panel6 ); dataPan.setLayout( new BoxLayout( dataPan, BoxLayout.X_AXIS ) ); dataPan.add( leftPanel); dataPan.add( rightPanel); getContentPane().setLayout( new BoxLayout( getContentPane(), BoxLayout.Y_AXIS ) ); getContentPane().add( dataPan ); getContentPane().add( butPan ); } public void actionPerformed( ActionEvent evt) { repaint(); } public static void main ( String[] args ) { MorningNoonNight mnn = new MorningNoonNight() ; WindowQuitter wquit = new WindowQuitter(); mnn.addWindowListener( wquit ); mnn.setSize( 400, 250 ); mnn.setVisible( true ); } } class WindowQuitter extends WindowAdapter { public void windowClosing( WindowEvent e ) { System.exit( 0 ); } }