import javax.swing.JWindow;

public class SimpleWindow extends JWindow {
	public SimpleWindow() {
		super();
		setBounds(250, 225, 300, 150);
	}
	
	public static void main (String[] arguments) {
		SimpleWindow sw = new SimpleWindow();
		sw.setVisible(true);
		for (int i=0; i<10000; i++)   //take up a little time for the window to display
			System.out.print(i+ " ");  
		sw.setVisible(false);
		System.exit(0);
		
	}
}