Get and Set the Selected Tab in a JTabbedPane in Java

  //from   w  w  w .  j a  v a 2 s  .  c  om
import java.awt.BorderLayout;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JTabbedPane;

public class Main {
  public static void main(String args[]) {
    JFrame frame = new JFrame("Tabbed Pane Sample");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JTabbedPane tabbedPane = new JTabbedPane();
    JButton button = new JButton("a");
    tabbedPane.addTab("java2s.com", new JButton("a"));
    tabbedPane.addTab("java2s.com", button);

    // Get the index of the currently selected tab
    int selIndex = tabbedPane.getSelectedIndex();

    // Select the last tab
    selIndex = tabbedPane.getTabCount() - 1;
    tabbedPane.setSelectedIndex(selIndex);

    frame.add(tabbedPane, BorderLayout.CENTER);
    frame.setSize(400, 150);
    frame.setVisible(true);
  }
}