Java tutorial
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(); } }