public override int GetHashCode() { return(FirstName.GetHashCode() ^ MiddleName.GetHashCode() ^ LastName.GetHashCode() ^ SSN.GetHashCode() ^ PermanentAddress.GetHashCode() ^ MobilePhone.GetHashCode() ^ Email.GetHashCode() ^ Course.GetHashCode() ^ Specialty.GetHashCode() ^ Univercity.GetHashCode() ^ Faculty.GetHashCode()); }