Databases
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    <p>To achieve such things you need to use <a href="http://docs.oracle.com/javase/tutorial/uiswing/layout/card.html" rel="nofollow">CardLayout</a>. </p> <p>Moreover, Once you remove the old JPanel from the JFrame to add a new JPanel, always do revalidate() and repaint() on the JFrame to realize the changes. Do remember, that only one component can be added at any given time at any given location. Try this code with modifications : </p> <pre><code>import java.awt.*; import java.awt.event.*; import javax.swing.*; public class PanelTest { public PanelTest() { JButton b1 = new JButton("show p1"); JButton b2 = new JButton("show p2"); JLabel l1 = new JLabel("This is p1"); JLabel l2 = new JLabel("This is p2"); final JPanel p1 = new JPanel(new FlowLayout()); p1.add(l1); final JPanel p2 = new JPanel(new FlowLayout()); p2.add(l2); JPanel buttonPNL = new JPanel(new FlowLayout()); buttonPNL.add(b1); buttonPNL.add(b2); final JFrame frm = new JFrame(); // shifted this line here. b1.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e){ // Added by me , these three lines if (p2.isShowing()) { frm.remove(p2); frm.add(p1, BorderLayout.CENTER); frm.revalidate(); // for JDK 1.7+ //frm.getRootPane().revalidate(); // for JDK 1.6 or lower frm.repaint(); } } }); b2.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e){ if (p1.isShowing()) { frm.remove(p1); frm.add(p2, BorderLayout.CENTER); // Added by me , these three lines frm.revalidate(); // for JDK 1.7+ //frm.getRootPane().revalidate(); // for JDK 1.6 or lower frm.repaint(); } } }); frm.setLayout(new BorderLayout()); frm.add(p1,BorderLayout.CENTER); frm.add(buttonPNL,BorderLayout.SOUTH); frm.setVisible(true); frm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frm.setSize(300,300); } public static void main(String... args) { SwingUtilities.invokeLater(new Runnable() { public void run() { new PanelTest(); } }); } } </code></pre>
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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