public void save() {
		Database database = new Database(familyService.getStudents(),
				familyService.getHousehold(), activityService.getActivities(),
				bookingService.getBookings(), bookingService.getDiningHall());

		// AQUI GUARDO LOS OBJETOS (usarlo cuando cierras la iu)
		try {
			FileOutputStream fs = new FileOutputStream(pathDB);
			ObjectOutputStream os = new ObjectOutputStream(fs);
			if (pathDB.compareTo("DBTest.bin") == 0) {
				database = new Database(new ArrayList<Student>(),
						new ArrayList<Household>(), new ArrayList<Activity>(),
						new ArrayList<Booking>(), new ArrayList<DiningHall>());
			}
			os.writeObject(database);

			os.close();
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}