private static void SingAbout(ISingAbout animal) { Console.WriteLine("Old MacDonald had a farm ee ay ee ay oh"); Console.WriteLine("And on his farm there was a " + animal.Name + " ee ay ee ay oh"); Console.WriteLine("With a " + animal.MakeSoundTwice() + " here and a " + animal.MakeSoundTwice() + " there"); Console.WriteLine("Here a " + animal.MakeSoundOnce() + ", there a " + animal.MakeSoundOnce() + " everywhere a " + animal.MakeSoundTwice()); Console.WriteLine("Old Macdonald had a farm, ee ay ee ay oh"); Console.WriteLine(); }
public static void SingAbout(this ISingAbout animal) { // Be nice }