static void Main(string[] args) { Instructor John = new Instructor("John", "English"); Instructor Mike = new Instructor("Mike", "Math"); Student Jane = new Student("Jane", John); Student Joe = new Student("Joe", John); Student Melissa = new Student("Melissa", Mike); Student Matt = new Student("Matt", Mike); John.SetStudentGrade(Jane, 95 ); John.SetStudentGrade(Joe, 85); Mike.SetStudentGrade(Melissa, 90); Mike.SetStudentGrade(Matt, 92); Jane.PrintStudentInfor(); Joe.PrintStudentInfor(); Melissa.PrintStudentInfor(); Matt.PrintStudentInfor(); }