static void Main() { Disciplines disclineOne = new Disciplines("math", 10, 12); Disciplines[] discipline = new Disciplines[] { disclineOne}; Teacher teacherOne = new Teacher("Ivan Ivanov", discipline); Teacher[] teachers = new Teacher[] { teacherOne }; Student studentOne = new Student("Stoyan", 1); Student studentTwo = new Student("Daniel", 2); Student studentThree = new Student("Yavor", 3); Student studentFour = new Student("Pesho", 5); Student studentFive = new Student("Darin", 8); Student [] students = new Student[]{studentOne,studentTwo,studentThree,studentFour,studentFive}; ClassesOfStudents classOne = new ClassesOfStudents(teachers, students, "6C"); classOne.AddTeacher(teacherOne); classOne.AddStudent(studentOne); classOne.AddStudent(studentFour); foreach (var s in students) { Console.WriteLine("Name of student:{0}",s.Name); } studentOne.AddText("vacation is over"); Console.WriteLine("The commnent of student is: {0}", studentOne.FreeTexts[0]); }