Java Swing How to - Extend JTabbedPane to always have an "Add Tab" tab

Question

We would like to know how to extend JTabbedPane to always have an "Add Tab" tab.

Answer

import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;
import javax.swing.JTextField;
import javax.swing.OverlayLayout;
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public class Main {
  public static void main(String[] args) {
    JPanel panel = new JPanel();
    panel.setLayout(new OverlayLayout(panel));

    JTabbedPane tabbedPane = new JTabbedPane();
    tabbedPane.add("1", new JTextField("one"));
    tabbedPane.add("2", new JTextField("two"));
    tabbedPane.setAlignmentX(1.0f);
    tabbedPane.setAlignmentY(0.0f);

    JCheckBox checkBox = new JCheckBox("Add tab");
    checkBox.setOpaque(false);
    checkBox.setAlignmentX(1.0f);
    checkBox.setAlignmentY(0.0f);

    panel.add(checkBox);
    panel.add(tabbedPane);

    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.add(panel);
    frame.setSize(400, 100);
    frame.setVisible(true);
  }
}