import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.swt.widgets.Shell;


public class MenuInMenu {
	public static void main(String[] args) {
		Display display = new Display();
		final Shell shell = new Shell(display);
		shell.setSize(400,300);
		Menu m = new Menu(shell, SWT.BAR);
		MenuItem file = new MenuItem(m, SWT.CASCADE);
	    file.setText("File");
	    file.addSelectionListener(new SelectionListener() {
			
			@Override
			public void widgetSelected(SelectionEvent e) {
				Shell s = new Shell(shell,SWT.None);
				Rectangle bounds = shell.getBounds();
				s.setBounds(new Rectangle(bounds.x, bounds.y+50, 100, 150));
				s.open();
				
			}
			
			@Override
			public void widgetDefaultSelected(SelectionEvent e) {
				// TODO Auto-generated method stub
				
			}
		});
		shell.setMenuBar(m);
		shell.open ();
		 while (!shell.isDisposed()) {
			    if (!display.readAndDispatch ()) display.sleep ();
			  }
			  display.dispose ();	
	}
	
}