public static void Test()
{
IAnimalFarm <Animal> animalFarm = new AnimalFarm();
IAnimalFarm <Cat> catFarm = animalFarm; //OK
catFarm.FeedAnimal(new Cat());
}
public static void Test()
{
IAnimalFarm <Cat> catFarm = new CatFarm();
IAnimalFarm <Animal> animalFarm = catFarm; //OK
Animal animal = animalFarm.ProduceAnimal();
}
