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package Bean;
import java.util.ArrayList;
import java.util.Iterator;
import Interface.QuackObservable;
import Interface.Observer;
/**
* Created by Administrator on 2017/7/14.
*/
public class Observable implements QuackObservable
{
ArrayList observers = new ArrayList<>();
QuackObservable duck;
public Observable(QuackObservable duck)
{
this.duck = duck;
}
@Override
public void registerObserver(Interface.Observer observer)
{
observers.add(observer);
}
@Override
public void notifyObservers()
{
Iterator iterator = observers.iterator();
while (iterator.hasNext())
{
Observer observer = (Observer) iterator.next();
observer.update(duck);
}
}
}
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