Java: JTabbedPane example with close button

This example demonstrates how a close button can be placed on a JTabbedPane. We will write a class JTabbedPaneWIthCloseButton. This class will generate a window with 4 tabs each with a close button and a custom title. If the button is pressed the corresponding tab will be closed.

The class adds a panel to the JTabbedPane and then adds a customer title which is also a JPanel. The title panel consists of a button and a title label.

public class JTabbedPaneWithCloseButton
{
private static JPanel getTitlePanel(final JTabbedPane tabbedPane, final JPanel panel, String title)
{
JPanel titlePanel = new JPanel(new FlowLayout(FlowLayout.LEFT, 0, 0));
titlePanel.setOpaque(false);
JLabel titleLbl = new JLabel(title);
titleLbl.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 5));
titlePanel.add(titleLbl);
JButton closeButton = new JButton("x");

closeButton.addMouseListener(new MouseAdapter()
{
@Override
public void mouseClicked(MouseEvent e)
{
tabbedPane.remove(panel);
}
});
titlePanel.add(closeButton);

return titlePanel;
}

/**
* Create the GUI and show it. For thread safety, this method should be
* invoked from the event-dispatching thread.
*/
public static void createAndShowGUI()
{
JFrame frame = new JFrame("Tabs");
frame.setMinimumSize(new Dimension(500, 500));
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JTabbedPane tabbedPane = new JTabbedPane();

JPanel panel = new JPanel();
panel.setOpaque(false);
tabbedPane.add(panel);
tabbedPane.setTabComponentAt(tabbedPane.indexOfComponent(panel), getTitlePanel(tabbedPane, panel, "Tab1"));

JPanel panel1 = new JPanel();
panel1.setOpaque(false);
tabbedPane.add(panel1);
tabbedPane.setTabComponentAt(tabbedPane.indexOfComponent(panel1), getTitlePanel(tabbedPane, panel1, "Tab2"));

JPanel panel2 = new JPanel();
panel2.setOpaque(false);
tabbedPane.add(panel2);
tabbedPane.setTabComponentAt(tabbedPane.indexOfComponent(panel2), getTitlePanel(tabbedPane, panel2, "Tab3"));

JPanel panel3 = new JPanel();
panel3.setOpaque(false);
tabbedPane.add(panel3);
tabbedPane.setTabComponentAt(tabbedPane.indexOfComponent(panel3), getTitlePanel(tabbedPane, panel3, "Tab4"));

frame.add(tabbedPane);

// Display the window.
frame.pack();
frame.setVisible(true);
}

}

I have erased the imports in order to make it shorter. Now we need a driver class.

public class Driver

{

public static void main(String[] args)

{

        javax.swing.SwingUtilities.invokeLater(new Runnable() {

            public void run() {

            JTabbedPaneWithCloseButton.createAndShowGUI();

            }

        });

}

}

The output from the program looks like this: