import javax.swing.*;
import java.awt.*;
import java.net.*;
public class JSplashWindow extends JWindow implements Runnable
{
 Thread splashThread=null;
 public JSplashWindow()
 {
   setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
   JPanel splash=new JPanel(new BorderLayout());
   URL url=getClass().getResource("/images/winter.jpg");
   if(url!=null)
    {
      splash.add(new JLabel(new ImageIcon(url)),BorderLayout.CENTER);
    }
     setContentPane(splash);
     Dimension screen=getToolkit().getScreenSize();
     pack();
     setLocation((screen.width-getSize().width)/2,(screen.height-getSize().height)/2);
 }
 public void start()
 {
   this.toFront();
   splashThread=new Thread(this);
   splashThread.start();
 }
 public void run()
 {
   try
    {
      show();
      Thread.sleep(5000);
    }
   catch(Exception ex)
    {
      ex.printStackTrace();
    }
   this.dispose();
 }
 static void showFrame(String title)
  {
    JFrame frame=new JFrame(title);
    frame.setSize(400,300);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Dimension screenSize=Toolkit.getDefaultToolkit().getScreenSize();
    Dimension frameSize=frame.getSize();
    if(frameSize.height>screenSize.height)
     {
       frameSize.height=screenSize.height;
     }
     if(frameSize.width>screenSize.width)
     {
       frameSize.width=screenSize.width;
     }
     frame.setLocation((screenSize.width-frameSize.width)/2,(screenSize.height-frameSize.height)/2);
     frame.setVisible(true);
   }
   public static void main(String[] args)
   {
      showFrame("Demo splash window");
      JSplashWindow splash=new JSplashWindow();
      splash.start();
   }
}