return this.getIdInternal().equals(examEnrollmentObj.getIdInternal());
return getExam().equals(examEnrollmentObj.getExam());
	public boolean equals(Object obj) {			if (obj instanceof ExamEnrollment) {				ExamEnrollment examEnrollmentObj = (ExamEnrollment) obj;				return this.getIdInternal().equals(examEnrollmentObj.getIdInternal());			}			return false;		}