Java tutorial
import javax.swing.JFrame; import javax.swing.JWindow; public class Main { public static void main(String[] args) { JFrame f = new JFrame("The Frame"); f.setSize(300, 300); f.setLocation(100, 100); JWindow w = new JWindow(); w.setSize(300, 300); w.setLocation(500, 100); f.setVisible(true); w.setVisible(true); } }