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package Bean;
import java.util.ArrayList;
import java.util.Iterator;
import Interface.Observer;
import Interface.Quackable;
/**
* Created by Administrator on 2017/7/14.
*/
public class Flock implements Quackable //组合模式
{
ArrayList<Quackable> quackers = new ArrayList<>();
Observable observable;
public Flock()
{
observable = new Observable(this);
}
public void add(Quackable quackable)
{
quackers.add(quackable);
}
@Override
public void quack()
{
System.out.println(quackers.size());
Iterator<Quackable> iterator = quackers.iterator();
while (iterator.hasNext())
{
Quackable quackable= iterator.next();
quackable.quack();
}
}
public void registerObserver(Observer observer)
{
Iterator<Quackable> iterator = quackers.iterator();
while (iterator.hasNext())
{
Quackable quackable= iterator.next();
quackable.registerObserver(observer);
}
}
@Override
public void notifyObservers()
{
observable.notifyObservers();
}
}
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