private void startDrag(Point point){
  if (movable) {
    dragStart=point;
    for (    WindowDragListener listener : dragListeners) {
      listener.startDrag(this);
    }
  }
}

private void startDrag ( Point point ) { if ( movable ) { dragStart = point ; for ( WindowDragListener listener : dragListeners ) { listener . startDrag ( this ) ; } } }
start dragging the window .
