public MallardDuck()
{
QuackBehavior = new Quack();
FlyBehavior = new FlyWithWings();
}
public RedHeadDuck()
{
FlyBehavior = new FlyWithWings();
QuackBehavior = new Quack();
}
public ModelDuck()
{
FlyBehavior = new FlyNoWay();
QuackBehavior = new Quack();
}
