quack

quack.java

interface Quacker {
    void Quack();
}

class Duck implements Quacker{
    public void Quack(){
        System.out.println("quack");
    }
}

class SithLord implements  Quacker{
    public void Quack(){
        System.out.println("dark side");
    }
}

class MakeQuack{
    Quacker toUse;
    public MakeQuack(Quacker toUse){
        this.toUse = toUse;
    }

    public void execute(){
        toUse.Quack();
    }


}

class Driver{
    public void drive(){
        //String s = new String("hello");
        Quacker s = new Quacker() {
            @Override
            public void Quack() {
                System.out.println("ha");
            }
        };
        MakeQuack q = new MakeQuack(s);
        q.execute();

        new MakeQuack(new Quacker() {
            @Override
            public void Quack() {
                System.out.println("HI");
            }
        }).execute();
    }


}