public static void main2(String[] args)
{
Duck mallard = new MallardDuck();
mallard.PerformQuack();
mallard.PerformFly();
Duck model = new ModelDuck();
model.PerformFly();
model.SetFlyBehavior(new FlyRocketPowered());
model.PerformFly();
}
public static void main1(String[] args)
{
MallardDuck mallard = new MallardDuck();
RubberDuck rubberDuckie = new RubberDuck();
DecoyDuck decoy = new DecoyDuck();
ModelDuck model = new ModelDuck();
mallard.PerformQuack();
rubberDuckie.PerformQuack();
decoy.PerformQuack();
model.PerformFly();
model.SetFlyBehavior(new FlyRocketPowered());
model.PerformFly();
}