ConcreteSubject.java

package com.cheng.zenofdesignpatterns.patterns.observer.common;

/**
 * 具体的被观察者
 */
public class ConcreteSubject extends Subject {
	
	//具体的业务
	public void doSomething(){
		/*
		 * do something
		 */
		super.notifyObserver();
	}
}