public MallardDuck()
{
quackBehavior = new QuackWithWings();
flyBehavior = new FlyWithWings();
}
public RedheadDuck()
{
quackBehavior = new QuackWithWings();
flyBehavior = new FlyWithWings();
}
public MallardDuck()
{
QuackBehavior = new DuckQuack();
FlyBehavior = new FlyWithWings();
}