// constructors
public Mark()
{
point = default(int);
markGround = default(MarkGround);
pupil = default(Pupil);
pupilID = default(int);
teacher = default(Teacher);
teacherID = default(int);
}
public Mark(int point_, Pupil pupil_, Teacher teacher_, MarkGround markGround_)
{
if (point_ < 1 || point_ > 10)
{
throw new ArgumentOutOfRangeException("In Mark.Mark(int, Pupil, Teacher, MarkGround): the point is out of range.");
}
point = point_;
pupil = pupil_;
pupilID = pupil_.PupilID;
teacher = teacher_;
teacherID = teacher_.TeacherID;
markGround = markGround_;
}
