private College ValidateParameters(string college, string degree, int semester) { if (Colleges.GetCollege(college) == null || Degrees.GetDegree(degree) == null) { if (semester != 1 || semester != 2 || semester != 3) { return(null); } } return(new College { Name = Colleges.GetCollege(college), Degree = Degrees.GetDegree(degree), Semester = semester, Session = "2017/2018" }); }