public Instructor Post(Instructor instructor)
{
var newId = _instructors.Max(x=> x.Id) + 1;
instructor.Id = newId;
_instructors.Add(instructor);
return instructor;
}
public Instructor Put(Instructor instructor)
{
var realinstructor = (from i in _instructors
where i.Id == instructor.Id
select i).FirstOrDefault();
realinstructor.Name = instructor.Name;
return instructor;
}