package mypackage;

public class DecoyDuck extends Duck{
    public DecoyDuck()
    {
        quackBehavior = new Quack();
        flyBehavior = new FlyWithWings();
    }

    public void display()
    {
    System.out.println("I'm a Decoy Duck!");
    }
}

package mypackage;

public abstract class Duck {
FlyBehavior flyBehavior;
QuackBehavior quackBehavior;

public Duck(){}

public void performFly(){
flyBehavior.fly();
}

public void performQuak(){
quackBehavior.quack();
}

public void swim(){
    System.out.println("Ducks and witches float");
}

public void setFlyBehavior(FlyBehavior fb)
{
flyBehavior = fb;
}

public void setQuackBehavior(QuackBehavior qb)
{
    quackBehavior = qb;
}
}

package mypackage;

public interface FlyBehavior {
public void fly();
}


package mypackage;

public class FlyNoWay implements FlyBehavior {

    @Override
    public void fly() {
        System.out.println("Flying. It's not something I can do.");

    }

}


package mypackage;

public class FlyRocketPowered implements FlyBehavior {

    @Override
    public void fly() {
        System.out.println("By the power of science, I'm flying with rockets!");

    }

}


package mypackage;

public class FlyWithWings implements FlyBehavior {

    @Override
    public void fly() {
        System.out.println("I'm flying!");
    }

}


package mypackage;

public class MallardDuck extends Duck{
public MallardDuck()
{
    quackBehavior = new Quack();
    flyBehavior = new FlyWithWings();
}

public void display()
{
System.out.println("I'm a Mallard Duck!");
}
}


package mypackage;

public class MiniDuckSim {

    /**
     * @param args
     */
    public static void main(String[] args) {
        Duck mallard = new MallardDuck();
        mallard.performFly();
        mallard.performQuak();

        Duck model = new ModelDuck();
        model.performFly();
        model.performQuak();
        model.setFlyBehavior(new FlyRocketPowered());
        model.performFly();



    }

}


package mypackage;

public class ModelDuck extends Duck{
    public ModelDuck()
    {
        quackBehavior = new Quack();
        flyBehavior = new FlyWithWings();
    }

    public void display()
    {
    System.out.println("I'm a model Duck!");
    }
}


package mypackage;

public class MuteQuakc implements QuackBehavior {

    @Override
    public void quack() {
        System.out.println("<silence>");

    }

}


package mypackage;

public class Quack implements QuackBehavior {

    @Override
    public void quack() {
        System.out.println("QUACK");

    }

}


package mypackage;

public interface QuackBehavior {
    public void quack();
}


package mypackage;

public class RedheadDuck extends Duck{
    public RedheadDuck()
    {
        quackBehavior = new Quack();
        flyBehavior = new FlyWithWings();
    }

    public void display()
    {
    System.out.println("I'm a Redhead Duck!");
    }
}


package mypackage;

public class RubberDuck extends Duck{
    public RubberDuck()
    {
        quackBehavior = new Squeek();
        flyBehavior = new FlyWithWings();
    }

    public void display()
    {
    System.out.println("I'm a Rubber Duck!");
    }
}


package mypackage;

public class Squeek implements QuackBehavior {

    @Override
    public void quack() {
        System.out.println("SQUEEK");

    }

}