Academic Calendar(opens in new window/tab) Code of Conduct(opens in new window/tab) School Menus(opens in new window/tab) Clever Login(opens in new window/tab) Transportation(opens in new window/tab) Volunteer Application(opens in new window/tab) News & Announcements Coffee with the Counselor...
11、常用设计模式及应用场景,用两种方式实现单例模式,要求线程安全? 答: 常用设计模式: 单例模式: Calendar实例的获取 适配器模式: Adapter为ListView GridView等添加数据 工厂模式: Spring IOC 反转控制 代理模式: Spring AOP 面向切面编程 观察者模式: ContentObserver监听内容改变 (懒汉式)程序执行过程中需要这个类...