JTabbed Panel Problem

Question

When I try to launch this application, nothing ever comes up.
The server itself worked great when it was a standalone, console app. I tried to modify the JTabbedPanel code so it wasn't an extended JPanel class. I had to do that because I couldn't access one of the text fields (it contains all the console information).
Thanks
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.SwingUtilities;
public class ServerInterface {
     public gameServer server;
     public int port;
     public JTextArea consoleData;
     public ServerInterface(gameServer server) {
     this.server = server;
     this.port = server.port;
     try {
            UIManager.setLookAndFeel(
                UIManager.getCrossPlatformLookAndFeelClassName());
        } catch (Exception e) { }
        //Create the top-level container and add contents to it.
      JFrame frame = new JFrame("Red Ion Server Interface v0.1");
      frame.setResizable(false);
      frame.setBounds(40, 40, 40, 40);
     frame.getContentPane().add(getPane(), BorderLayout.NORTH);
        //Finish setting up the frame, and show it.
        frame.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                System.exit(0);
        frame.pack();
        frame.setVisible(true);
     public JPanel getPane() {
          JPanel mainPane = new JPanel();
          ImageIcon icon = new ImageIcon("images/ri.gif");
          JTabbedPane tabbedPane = new JTabbedPane();
        Component panel1 = makeMainTab();
        tabbedPane.addTab("Main", icon, panel1, "Main Server Functions");
        tabbedPane.setSelectedIndex(0);
        Component panel2 = makeStatusTab();
        tabbedPane.addTab("Status", icon, panel2, "Current Server Status");
        tabbedPane.setSelectedIndex(1);
        Component panel3 = makeConfigTab();
        tabbedPane.addTab("Config", icon, panel3, "Server Configuration");
        tabbedPane.setSelectedIndex(2);
        Component panel4 = makeConsoleTab();
        tabbedPane.addTab("Console", icon, panel4, "Opens the Console");
        tabbedPane.setSelectedIndex(3);
        //Add the tabbed pane to this panel.
        tabbedPane.setLayout(new GridLayout(1, 1));
        tabbedPane.add(tabbedPane);
        mainPane.setLayout(new GridLayout(0, 1));
        mainPane.add(tabbedPane);
        return mainPane;
          public Component makeStatusTab() {
          JTextField ServerName = new JTextField(20);
         JLabel ServerNameLabel = new JLabel(" Server Name");
         JLabel junk = new JLabel(" ");
         JTextField ServerPort = new JTextField(20);
         JLabel ServerPortLabel = new JLabel(" Server Port");
         JButton startButton = new JButton("Start Server");
        startButton.setMnemonic(KeyEvent.VK_I);
        startButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
               final SwingWorker worker = new SwingWorker() {
                       public Object construct() {
                      server.startServer(port);
                      return "asd";
                   worker.start();
             JButton stopButton = new JButton("Stop Server");
        stopButton.setMnemonic(KeyEvent.VK_I);
        stopButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
               server.killServer();
        JPanel inputPane = new JPanel();
        inputPane.setLayout(new GridLayout(0, 1));
        inputPane.add(ServerName);
        inputPane.add(ServerPort);
        inputPane.add(startButton);
        inputPane.add(stopButton);
        JPanel labelPane = new JPanel();
        labelPane.setLayout(new GridLayout(0, 1));
        labelPane.add(ServerNameLabel);
        labelPane.add(ServerPortLabel);
        labelPane.add(junk);
        labelPane.add(junk);
          JPanel contentPane = new JPanel();
        contentPane.setBorder(BorderFactory.createEmptyBorder(
                                        30, //top
                                        30, //left
                                        10, //bottom
                                        30) //right
          contentPane.setBorder(BorderFactory.createEmptyBorder(20, 20,
                                                      20, 20));
          contentPane.setLayout(new BorderLayout());
          contentPane.add(inputPane, BorderLayout.CENTER);
          contentPane.add(labelPane, BorderLayout.EAST);
          contentPane.setPreferredSize(new Dimension(400,300));
        return contentPane;
          public Component makeConsoleTab() {
     consoleData = new JTextArea("D");
     consoleData.setFont(new Font("Arial", Font.BOLD, 12));
     consoleData.setLineWrap(true);
     consoleData.setWrapStyleWord(true);
     consoleData.setEnabled(false);
     JScrollPane consoleDataScroll = new JScrollPane(consoleData);
          JTextField consoleInput = new JTextField(20);
        JPanel inputPane = new JPanel();
       inputPane.setLayout(new BorderLayout());
        inputPane.add(consoleDataScroll, BorderLayout.CENTER);
        inputPane.add(consoleInput, BorderLayout.SOUTH);
          inputPane.setPreferredSize(new Dimension(400,300));
        return inputPane;
     public Component makeMainTab() {
     JTextField ServerName = new JTextField(20);
         JLabel ServerNameLabel = new JLabel(" Server Name");
         JLabel junk = new JLabel(" ");
         JTextField ServerPort = new JTextField(20);
         JLabel ServerPortLabel = new JLabel(" Server Port");
         JButton startButton = new JButton("Start Server");
        startButton.setMnemonic(KeyEvent.VK_I);
        startButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
               final SwingWorker worker = new SwingWorker() {
                       public Object construct() {
                      server.startServer(port);
                      return "asd";
                   worker.start();
             JButton stopButton = new JButton("Stop Server");
        stopButton.setMnemonic(KeyEvent.VK_I);
        stopButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
               server.killServer();
        JPanel inputPane = new JPanel();
        inputPane.setLayout(new GridLayout(0, 1));
        inputPane.add(ServerName);
        inputPane.add(ServerPort);
        inputPane.add(startButton);
        inputPane.add(stopButton);
        JPanel labelPane = new JPanel();
        labelPane.setLayout(new GridLayout(0, 1));
        labelPane.add(ServerNameLabel);
        labelPane.add(ServerPortLabel);
        labelPane.add(junk);
        labelPane.add(junk);
          JPanel contentPane = new JPanel();
        contentPane.setBorder(BorderFactory.createEmptyBorder(
                                        30, //top
                                        30, //left
                                        10, //bottom
                                        30) //right
          contentPane.setBorder(BorderFactory.createEmptyBorder(20, 20,
                                                      20, 20));
          contentPane.setLayout(new BorderLayout());
          contentPane.add(inputPane, BorderLayout.CENTER);
          contentPane.add(labelPane, BorderLayout.EAST);
          contentPane.setPreferredSize(new Dimension(400,300));
        return contentPane;
     public Component makeConfigTab() {
     JTextField ServerName = new JTextField(20);
         JLabel ServerNameLabel = new JLabel(" Server Name");
         JLabel junk = new JLabel(" ");
         JTextField ServerPort = new JTextField(20);
         JLabel ServerPortLabel = new JLabel(" Server Port");
         JButton startButton = new JButton("Start Server");
        startButton.setMnemonic(KeyEvent.VK_I);
        startButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
               final SwingWorker worker = new SwingWorker() {
                       public Object construct() {
                      server.startServer(port);
                      return "asd";
                   worker.start();
             JButton stopButton = new JButton("Stop Server");
        stopButton.setMnemonic(KeyEvent.VK_I);
        stopButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
               server.killServer();
        JPanel inputPane = new JPanel();
        inputPane.setLayout(new GridLayout(0, 1));
        inputPane.add(ServerName);
        inputPane.add(ServerPort);
        inputPane.add(startButton);
        inputPane.add(stopButton);
        JPanel labelPane = new JPanel();
        labelPane.setLayout(new GridLayout(0, 1));
        labelPane.add(ServerNameLabel);
        labelPane.add(ServerPortLabel);
        labelPane.add(junk);
        labelPane.add(junk);
          JPanel contentPane = new JPanel();
        contentPane.setBorder(BorderFactory.createEmptyBorder(
                                        30, //top
                                        30, //left
                                        10, //bottom
                                        30) //right
          contentPane.setBorder(BorderFactory.createEmptyBorder(20, 20,
                                                      20, 20));
          contentPane.setLayout(new BorderLayout());
          contentPane.add(inputPane, BorderLayout.CENTER);
          contentPane.add(labelPane, BorderLayout.EAST);
          contentPane.setPreferredSize(new Dimension(400,300));
        return contentPane;
}

Answer 1

I guess the problem is that you explictly set a size for each tab, and the JTabbedPane. If you let a LayoutManager do this for you the JTabbedPane will automaticly choose a size for itself and the panels that you add, so that all the panels get an equal size, just large enough that all the panels completely overlap.
So I guess you can just remove/comment out the lines where you set the minimum/preferred size for you panels and the tabbedpane.
Don't forget to call pack() on the window/JFrame where you add your components