import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JWindow;
import javax.swing.SwingConstants;
public class Main extends JFrame {
public static void main(String args[]) {
JWindow window = new JWindow();
window.getContentPane().add(new JLabel("Loading", SwingConstants.CENTER));
window.setBounds(500, 150, 300, 200);
window.setVisible(true);
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
}
window.setVisible(false);
JFrame frame = new JFrame();
frame.add(new JLabel("Welcome Swing application..."));
frame.setVisible(true);
frame.setSize(300, 200);
window.dispose();
}
}