public boolean action(Event evt, Object what) { if (evt.target instanceof MenuItem) { // Since we didn't save references to each of the menu objects, // we check which one was pressed by comparing labels. if (((String) evt.arg).equals("Run")) { for (int i = 0; i < 360; i++) { act.rotateX(1); renderer.render(); } } } System.out.println("Event: " + evt + " Object: " + what); return super.action(evt, what); }