//JSplashWindow.java//Demos how to show a splash windowimport 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);    //Center the window    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();      }}