package com.devchronicles.observer;
import java.util.ArrayList;
import java.util.List;
import java.util.Observable;
import java.util.Observer;
public class NewsAgency extends Observable implements Publisher {
private List<Observer> channels = new ArrayList<>();
public void addNews(String newsItem) {
notifyObservers(newsItem);
}
public void notifyObservers(String newsItem) {
for (Observer outlet : this.channels) {
outlet.update(this, newsItem);
}
}
public void register(Observer outlet) {
channels.add(outlet);
}
}