How do I disable or enable tabs in JTabbedPane?

By Wayan in Swing 0 Comment

To enable or disable tabs in JTabbedPane you can use the JTabbedPane‘s setEnableAt(int index, boolean enable) method. The index is zero based, this means that the first tab is at index number 0. The enable parameter when set to true will enable the tab while setting to false will disable the tab.

package org.kodejava.swing;

import javax.swing.*;
import java.awt.*;

public class TabbedPaneEnableDisableTab extends JPanel {
    public TabbedPaneEnableDisableTab() {
        initializeUI();
    }

    public static void showFrame() {
        JPanel panel = new TabbedPaneEnableDisableTab();
        panel.setOpaque(true);

        JFrame frame = new JFrame("JTabbedPane Demo");
        frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        frame.setContentPane(panel);
        frame.pack();
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(TabbedPaneEnableDisableTab::showFrame);
    }

    private void initializeUI() {
        JTabbedPane pane = new JTabbedPane();
        pane.addTab("Tabs A", new JPanel());
        pane.addTab("Tabs B", new JPanel());
        pane.addTab("Tabs C", new JPanel());
        pane.addTab("Tabs D", new JPanel());

        // Disable the first tab
        pane.setEnabledAt(0, false);

        // Disable the last tab, the pane.getTabCount() return the
        // number of tabs in the JTabbedPane. Because the index
        // start at 0 we need to subtract the count by 1.
        pane.setEnabledAt(pane.getTabCount() - 1, false);

        this.setLayout(new BorderLayout());
        this.setPreferredSize(new Dimension(500, 200));
        this.add(pane, BorderLayout.CENTER);
    }
}

Below is the screenshot result of the code snippet above:

Enable or Disable Tabs in JTabbedPane

Wayan
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