PersonModule.Student.UpdateStudentDetails C# (CSharp) Method

        public void UpdateStudentDetails(string newFirstName, string newLastName, string newEGN, int newFacultyNumber, StudentRank newRank = StudentRank.Unknown, string newHometown = "Unknown")
        {
            this.UpdatePersonalDetails(newFirstName, newLastName, newEGN, newHometown);
            if (newFacultyNumber == 0)
            {
                throw new ArgumentException("Faculty number cannot be zero");
            }

    //        this.coursesList = new List<Course>();
    //        this.GradeList = new List<Grade>();
            this.FacultyNumber = newFacultyNumber;
            this.Rank = newRank;
            //this.Points = newPoints;
        }