static void Main(string[] args)
{
Duck d = new MallardDuck();
d.quackingBehaviour = new Quack();
d.flyingBehaviour = new FlyWithWings();
d.PerformQuack();
Duck d2 = new ModelDuck();
d2.PerformFly();
d2.flyingBehaviour = new FlyWithRockets();
d2.PerformFly();
Console.ReadLine();
}
private static void Main(string[] args)
{
//The startegy pattern: defines a family of algorithms, encapsulates each one, and makes them interchangeable.
//Strategy lets the algorithm vary independently from clients that use it.
Duck mallard = new MallardDuck();
mallard.PerformQuack();
mallard.PerformFly();
Duck modelDuck = new ModelDuck();
modelDuck.PerformQuack();
modelDuck.PerformFly();
modelDuck.SetFlyBehavior(new FlyRocketPowered());
modelDuck.PerformFly();
Console.ReadLine();
}