Java Swing How to - Show loading progress in JWindow

Question

We would like to know how to show loading progress in JWindow.

Answer

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JWindow;
import javax.swing.SwingConstants;
/* w  w w. j a  v  a  2s .c  o  m*/
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();
  }
}