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package Bean;
import Interface.Observer;
import Interface.Quackable;
/**
* Created by Administrator on 2017/7/14.
*/
public class QuackCounter implements Quackable
{
Quackable duck;
static int numberofQuacks=0;
Observable observable;
public void registerObserver(Observer observer)
{
observable.registerObserver(observer);
}
@Override
public void notifyObservers()
{
observable.notifyObservers();
}
public QuackCounter(Quackable duck)
{
this.duck = duck;
observable = new Observable(this);
}
public void quack()
{
duck.quack();
numberofQuacks++;
notifyObservers();
}
public static int getQuacks()
{
return numberofQuacks;
}
}
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