package singleton; /** * @author 丛培雪 E-mail:congpeixue@126.com * @version 创建时间:2008-7-6 上午02:21:41 类说明 */ public class Singleton { static class SingletonHolder { static Singleton instance = new Singleton(); } public static Singleton getInstance() { return SingletonHol ...
简单工厂模式 // 产品接口 public interface Product { public void getName(); } // 具体产品A public class ProductA implements Product { public void getName() { System.out.println(" I am ProductA "); } } // ...
Business.class package aop; public interface Business { public void print(); } BusinessImpl.class package aop; import java.util.logging.Logger; public class BusinessImpl implements Business { private Logger logger = Logger.getLogger(this.getClass().getName()); public ...
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