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    <p>Any <code>Component</code> can have a <code>MouseListener</code>. <code>JLabel</code> is nice for a colored rectangle, as long as you make it opaque.</p> <p>Addendum: Having recommended <code>MouseAdapter</code> elsewhere, I should mention that <em>one</em> instance is enough.</p> <p>Addendum: This update adds the mouse listener in the <code>ColorLabel</code> constructor.</p> <p><img src="https://i.stack.imgur.com/e2jkU.png" alt="ColorLabel picture"></p> <pre><code>import java.awt.Color; import java.awt.Dimension; import java.awt.EventQueue; import java.awt.GridLayout; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.util.Random; import javax.swing.JFrame; import javax.swing.JLabel; /** @see http://stackoverflow.com/questions/5136859 */ public class ColorLabel extends JLabel { private static final int N = 10; private static final Random random = new Random(); private static final MouseAdapter listener = new MouseAdapter() { @Override public void mousePressed(MouseEvent e) { ColorLabel label = (ColorLabel) e.getSource(); label.setBackground(new Color(random.nextInt())); } }; public ColorLabel() { this.setOpaque(true); this.setBackground(new Color(random.nextInt())); this.setPreferredSize(new Dimension(32, 32)); this.addMouseListener(listener); } private void displayGrid() { JFrame f = new JFrame("ColorGrid"); f.setLayout(new GridLayout(N, N)); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); for (int i = 0; i &lt; N * N; i++) { final ColorLabel label = new ColorLabel(); f.add(label); } f.pack(); f.setLocationRelativeTo(null); f.setVisible(true); } public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { @Override public void run() { new ColorLabel().displayGrid(); } }); } } </code></pre>
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    1. COThis example was a really big help in giving me a better idea of how to do this, however, when executed this code provides a 10x10 grid of randomly colored squares. How would I edit it to display rectangles?
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    2. COTry changing the label's preferred size.
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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.

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