Splash Screen before program begins

[AlarV]

Hey everyone!
I've been trying to create a Splash Screen in my Java program. I've managed to make the splash screen show itself, with the program. I now want to make it show first, and then show my main program. As in every program nowadays..

Here is my code:

/*
 
 
package ****;
 
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Frame;
import java.awt.Toolkit;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JWindow;
import javax.swing.SwingUtilities;
 
 
class SplashWindow1 extends JWindow
{
 
 
    public SplashWindow1(String filename, Frame f,int waitTime)
    {
        super(f);
        JLabel l = new JLabel(new ImageIcon(filename));
        getContentPane().add(l, BorderLayout.CENTER);
        pack();
        Dimension screenSize =
          Toolkit.getDefaultToolkit().getScreenSize();
        Dimension labelSize = l.getPreferredSize();
        setLocation(screenSize.width/2 - (labelSize.width/2),
                    screenSize.height/2 - (labelSize.height/2));
        addMouseListener(new MouseAdapter()
            {
                public void mousePressed(MouseEvent e)
                {
                    setVisible(false);
                    dispose();
                }
            });
        final int pause = waitTime;
        final Runnable closerRunner = new Runnable()
            {
                public void run()
                {
                    setVisible(false);
                    dispose();
                }
            };
        Runnable waitRunner = new Runnable()
            {
                public void run()
                {
                    try
                        {
                            Thread.sleep(pause);
                            SwingUtilities.invokeAndWait(closerRunner);
                        }
                    catch(Exception e)
                        {
                            e.printStackTrace();
                            // can catch InvocationTargetException
                            // can catch InterruptedException
                        }
                }
            };
 
        setVisible(true);
        Thread splashThread = new Thread(waitRunner, "SplashThread");
        splashThread.start();
    }
}

and in the Main class I call the SplashScreen like this:

JFrame myframe = new Main();
SplashWindow1 a = new SplashWindow1("C:/*********/splash.gif",myframe,4000);
 

With this code it runs with the program, so the splash screen shows and myframe is visible too and I can start working.

I want the splash screen to show first, load stuff etc. and then show myframe!

I thought things like

Frame f=new JFrame();
                    SplashWindow1 a = new SplashWindow1("C:/*****/splash.gif",f,4000);
                    while(a.isVisible()) try {
                        Thread.sleep(100);
                    } catch (InterruptedException ex) {
                        Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
                    }

but it doesn't work, the JWindow of the splash screen is like stuck, and after the 4 seconds my main program shows.


Any ideas??

Thanks in advance!
Alex