public DecoyDuck()
{
flyBehavior = new FlyNoWay();
quackBehavior = new MuteQuack();
}
public RubberDuck()
{
flyBehavior = new FlyNoWay();
quackBehavior = new Squeak();
}
public ModelDuck()
{
flyBehavior = new FlyNoWay();
quackBehavior = new Quack();
}