public string getCanName(int canId)
        {
            CandidateDatabase cd = new CandidateDatabase();

            return(cd.getCanName(canId));
        }
        public void delCandidatePref(int candidateNo)
        {
            CandidateDatabase cd = new CandidateDatabase();

            cd.delCandidatePref(candidateNo);
        }
        public List <int> getByIdPref(int canId)
        {
            CandidateDatabase cd = new CandidateDatabase();

            return(cd.getByIdPref(canId));
        }
        public void addCandidatePref(int candidateNo, List <College> pref)
        {
            CandidateDatabase cd = new CandidateDatabase();

            cd.addCandidatePref(candidateNo, pref);
        }
        public List <Candidate> getAll()
        {
            CandidateDatabase cd = new CandidateDatabase();

            return(cd.getAll());
        }