How to a particular panel in a tabbed pane to the front?

Question

Hello
I have a small application that uses a tabbed pane. At some point I want to press a button in one of the panels of the tabbed pane and then another panel in the same tabbed pane to show up, as if I had clicked on that tab to bring it to the front.
Only difference is I don't want to click on the tab to do it but on another button, so I can do some more stuff through the button before I bring the other panel to the front
I thought I could do this by getting focus, but it seems not to be the case. Getting focus does not mean coming to the front as I originally thought.
I hope this is clear. Here is an example that you can compile and run. I want to get jpanel2 to the front by clicking jbutton1 and vice versa.
Any help appreciated.
(Frame1.java)
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Frame1 extends JFrame {
    private JTabbedPane jTabbedPane1 = new JTabbedPane();
    private JPanel jPanel1 = new JPanel();
    private JPanel jPanel2 = new JPanel();
    private JButton jButton1 = new JButton();
    private JButton jButton2 = new JButton();
    private JTextField jTextField1 = new JTextField();
    private JTextField jTextField2 = new JTextField();
    public Frame1() {
        try {
            jbInit();
            this.setDefaultCloseOperation(EXIT_ON_CLOSE);
            setVisible(true);
        } catch (Exception e) {
            e.printStackTrace();
    private void jbInit() throws Exception {
        this.getContentPane().setLayout( null );
        this.setSize( new Dimension(400, 300) );
        jTabbedPane1.setBounds(new Rectangle(0, 0, 395, 270));
        jPanel1.setLayout(null);
        jPanel2.setLayout(null);
        jButton1.setText("jButton1");
        jButton1.setBounds(new Rectangle(20, 170, 160, 25));
        jButton1.addActionListener(new ActionListener() {
                    public void actionPerformed(ActionEvent e) {
                        jButton1_actionPerformed(e);
        jButton2.setText("jButton2");
        jButton2.setBounds(new Rectangle(20, 135, 160, 25));
        jButton2.addActionListener(new ActionListener() {
                    public void actionPerformed(ActionEvent e) {
                        jButton2_actionPerformed(e);
        jTextField1.setBounds(new Rectangle(55, 45, 210, 20));
        jTextField2.setBounds(new Rectangle(95, 50, 180, 20));
        jPanel1.add(jTextField1, null);
        jPanel1.add(jButton1, null);
        jTabbedPane1.addTab("jPanel1", jPanel1);
        jPanel2.add(jTextField2, null);
        jPanel2.add(jButton2, null);
        jTabbedPane1.addTab("jPanel2", jPanel2);
        this.getContentPane().add(jTabbedPane1, null);
    private void jButton1_actionPerformed(ActionEvent e) {
    private void jButton2_actionPerformed(ActionEvent e) {
    public static void main(String[] args) {
        new Frame1();
}

Answer 1

tabbedPane.setSelectedIndex(...);