public Class(string textIdent, Teacher[] teachers, Student[] students)
 {
     this.TextIdentifier = textIdent;
     this.teachers = new List<Teacher>();
     this.teachers.AddRange(teachers);
     this.students = new List<Student>();
     this.students.AddRange(students);
 }
 public void RemoveStudent(Student student)
 {
     this.Students.Remove(student);
 }
 public void AddStudent(Student student)
 {
     this.Students.Add(student);
 }