static void Main(string[] args)
{
Animal animal = new Animal();
//animal.Type = "Mammal";
Console.WriteLine("Animal Type: {0}", DoubleQuestionMark(animal));
Console.ReadLine();
}
public static string DoubleQuestionMark(Animal a)
{
Animal temp = new Animal() { Type = "Reptile" };
return (a.Type) ?? temp.Type;
}