private void AbstractFactoryDesignPattern()
{
// create objects using Abstract Factory Design Pattern
var createTiger = new AnimalMaker();
createTiger.CreateAnimal();
}
static void ReturnTypeCovariance()
{
Giraffe giraffe = new Giraffe();
// This is an example of method group being covariant in their
// return types. The delegate definition very clearly wants an
// Animal from the method group but the definition of MakeGiraffe
// returns a giraffe.
// From the article at Eric Lippert's blog: http://goo.gl/bpDPPX
// "The caller of func is never going to get anything that they’re
// not capable of dealing with."
AnimalMaker animalMaker = new AnimalMaker(giraffe.MakeGiraffe);
}
