test.java

23种GOF模式的java代码实现

package org.gof.action.observer;

public class Test {
  public static void main(String[] args) {
    Product product = new Product();
    NameObserver nameobs = new NameObserver();
    PriceObserver priceobs = new PriceObserver();
    //加入观察者
    product.addObserver(nameobs);
    product.addObserver(priceobs);
    product.setName("橘子红了");
    product.setPrice(9.22f);
  }
}