public MallardDuck()
{
iQuackBehavior = new QuackClass();
iFlyBehavior = new FlyWithWings();
}
public ReadheadDuck()
{
iQuackBehavior = new QuackClass();
iFlyBehavior = new FlyWithWings();
}
public ModelDuck()
{
iFlyBehavior = new FlyNoWay();
iQuackBehavior = new QuackClass();
}