@Override
	public int compare(Question question1, Question question2) {
		if (question1.quizID < question2.quizID)
			return -1;
		else if (question1.quizID > question2.quizID) 
			return 1;
		else {
			if (question1.position < question2.position)
				return -1;
			else if (question1.position > question2.position)
				return 1;
			else 
				return 0;
		}
	}