int result = -o1.getName().compareTo(o2.getName());
int result = o1.getName().compareTo(o2.getName());
	public int compare(AnnouncementBoard o1, AnnouncementBoard o2) {	    int result = -o1.getName().compareTo(o2.getName());	    return (result == 0) ? o1.getIdInternal().compareTo(o2.getIdInternal()) : result;	}