public void PrintContestantInfo(Contestant contestant)
{
Console.WriteLine("Sweepstakes winner's first name is " + contestant.FirstName);
Console.WriteLine("Winner's last name is " + contestant.LastName);
Console.WriteLine("Winner's email address is " + contestant.EmailAddress);
}
public void RegisterContestant(Contestant contestant)
{
contestant.RegistrationNumber = ContestantData.Count + 1;
ContestantData.Add(contestant.RegistrationNumber, contestant);
}