static void Main(string[] args)
{
instructor john = new instructor("john", "English");
instructor mike = new instructor("john", "Math");
student jane = new student("jane", 0, john);
student joe = new student("joe", 0, john);
student Melissa = new student("Melissa", 0, mike);
student Matt = new student("Matt", 0, mike);
john.SetStudentGrade(jane, 95);
john.SetStudentGrade(joe, 85);
mike.SetStudentGrade(Melissa, 90);
mike.SetStudentGrade(Matt, 92);
}
public student(string studentName, int grade, instructor teacher)
{
this.studentName = studentName;
this.grade = grade;
this.teacher = teacher;
}