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    <p><strong>Some General Rules</strong></p> <ul> <li>Swing is not thread safe, you should only ever update UI components from within the context of the Event Dispatching Thread.</li> <li>You do not control the paint process, the repaint manager does. You can request updates to occur by calling <code>repaint</code>, but you should never call <code>update</code> and <code>paint</code> directly when trying to update the display.</li> <li>The <code>Graphics</code> context used by the paint sub system is a shared resource and is not guaranteed to be the same between paint cycles, you should never maintain a reference to it. You should also not rely on the results from <code>JComponent#getGraphics</code> this method is capable of returning null.</li> </ul> <p><strong>An Example Solution</strong></p> <p>You have a number of options, depending on what you want to ultimately achieve.</p> <p>You could use a <code>SwingWorker</code>, but given the fact that all your going to is enter an infinite loop and it would easier to use <code>SwingUtilities#invokeLater</code> then actually use the <code>publish</code> method, this approach would actually be more work.</p> <p>You could also use a <code>Thread</code>, but you'd end up with the same problems as using a <code>SwingWorker</code></p> <p>The simpliset solution, for what you're presented, is actually a <code>javax.swing.Timer</code></p> <pre><code>public class Blinky { public static void main(String[] args) { new Blinky(); } public Blinky() { EventQueue.invokeLater(new Runnable() { @Override public void run() { try { UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) { } JFrame frame = new JFrame("Test"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setLayout(new BorderLayout()); frame.add(new BlinkyPane()); frame.pack(); frame.setLocationRelativeTo(null); frame.setVisible(true); } }); } protected class BlinkyPane extends JPanel { private JLabel blinkyLabel; private boolean blink = false; public BlinkyPane() { setLayout(new GridBagLayout()); blinkyLabel = new JLabel("I'm blinking here"); blinkyLabel.setBackground(Color.RED); add(blinkyLabel); Timer timer = new Timer(250, new ActionListener() { @Override public void actionPerformed(ActionEvent e) { blink = !blink; if (blink) { blinkyLabel.setForeground(Color.YELLOW); } else { blinkyLabel.setForeground(Color.BLACK); } blinkyLabel.setOpaque(blink); repaint(); } }); timer.setRepeats(true); timer.setCoalesce(true); timer.start(); } @Override public Dimension getPreferredSize() { return new Dimension(200, 100); } } } </code></pre> <p>You can take a look at <a href="http://docs.oracle.com/javase/tutorial/uiswing/misc/timer.html" rel="nofollow">Swing Timer</a> and <a href="http://docs.oracle.com/javase/tutorial/uiswing/concurrency/index.html" rel="nofollow">Concurrency in Swing</a> for more info</p>
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    1. CO+1 very nice mr mad :)
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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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