static void Main()
        {
            Teacher teach = new Teacher("Zlatka", "Ivanova");
            teach.AddDiscipline(new Disciplines("matematika", 1, 14)); //asign discipline to teacher
            teach.AddDiscipline(new Disciplines("Fizika", 2, 15));

            Teacher teacherIvan = new Teacher("Ivan", "Ivanov", new Disciplines("Math", 5, 14));
            teacherIvan.AddDiscipline(new Disciplines("Phisycs", 5, 15));

            Students studentIvan = new Students("Pavel","Ivanov");
            Students studentPeho = new Students("Petar", "Petrov");
            Classes class1 = new Classes(teach, studentIvan, "46153689");
            class1.AddStudent(studentPeho);

            Console.WriteLine(class1);
            Console.WriteLine("==========================================");

            Console.WriteLine(teach);
            Console.WriteLine(teacherIvan);
        }
        static void Main()
        {
            // Creating school
            School telerik = new School("Telerik Academy");

            // Creating disciplines
            Disciplines csharp1 = new Disciplines("C# part 1: ", 7, 10);
            Disciplines csharp2 = new Disciplines("C# part 2: ", 8, 10);
            Disciplines csharpOOP = new Disciplines("C# OOP: ", 6, 10);
            Disciplines csharpHQC = new Disciplines("C# High-Quality Code: ", 20, 40);
            Disciplines csharDSA = new Disciplines("C# Data Structures and Algorithms: ", 15, 25);

            telerik.AddDisciplines(csharp1);

            // Creating teachers
            Teachers doncho = new Teachers("Doncho Minkov");
            Teachers niki = new Teachers("Nikolay Kostov");

            // telerik.AddTeachers(doncho);
            // doncho.AddDisciplines(csharp1);

            List<Teachers> cSharpTeachers = new List<Teachers>() {doncho, niki};

            Classes first = new Classes("First Group");
            Classes second = new Classes("Second Group");

            // telerik.AddClasses(first);
            // first.AddTeachers(doncho);

            // Creating students
            Students vili = new Students("Vili", 1);
            Students kris = new Students("Kristian", 2);
            Students mitko = new Students("Dimitar", 3);
            Students gosho = new Students("Georgi", 4);

            // Add comment
            vili.AddComment("kris");
            vili.PrintComment();

            Console.WriteLine(telerik);
        }
 public void AddStudent(Students student)
 {
     studentList.Add(student);
 }
 //Constructor
 public Classes(Teacher teacher, Students student, string identifier)
 {
     this.Identifier = identifier;
     this.studentList.Add(student);
     this.teacher = teacher;
 }