MakeClassSchedule.Algorithm.Professor.AddCourseClass C# (CSharp) Method

        public void AddCourseClass(CourseClass courseClass)
        {
            _courseClasses.Add(courseClass);
        }

 /// <summary>
 /// Initializes class object
 /// </summary>
 /// <param name="professor">Professor ID</param>
 /// <param name="course">Course ID</param>
 /// <param name="groups">List of Group ID</param>
 /// <param name="lab">Class Lab name</param>
 /// <param name="duration">Class Duration (in hours)</param>
 public CourseClass(Professor professor, Course course, 
        List<StudentsGroup> groups, string lab, int duration, int class_Id)
 {
     _professor = professor;
     _course = course;
     _numberOfSeats = 0;
     _lab = lab;
     _duration = duration;
     Class_ID = class_Id;
     //
     // bind professor to class
     //
     /*
     for (int prof = 0; prof < _professor.Count; prof++)
         // multiple professor for a courseClass (One of several professor will be chosen)
         _professor[prof].AddCourseClass(this);
     */
     _professor.AddCourseClass(this);
     //
     // bind student groups to class
     //
     foreach (StudentsGroup it in groups)
     {
         it.AddCourseClass(this);
         _groups.Add(it);
         _numberOfSeats += it.GetNumberOfStudents;
     }
 }