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Creates an object from its specific subclass. Q: How can it be realized? Answer: To create abstract classes derived from factories, that is, specific factories create specific products. Since products are to be created, product abstract classes and specific product classes are naturally needed.Ace Training Program//150高中篮球部恩师安东胜仁(伊武雅刀)的告别会上，原女社员们聚集在一起。其中，尤为不幸的3名前队长榎木香菜〔山口纱弥加〕、鹤贺优子〔财前直见〕、三代泽茜〔樱庭奈奈波〕。刚刚遭遇了各自都没有预料到的事情，“自己的巅峰是高中时代……”他自嘲道。在这样的情况下，恩师的妻子佳惠(余贵美子)的一句话让事态急转直下。“要不要住篮球宿舍?”住在同一屋檐下的3人，加上恩师的儿子·悠一(友良介)、香菜的女儿·环(根本真阳)，世代不同的6人的“疑似家族”生活开始了。在各自努力改变的过程中，她们的人生真的会有一次逆转吗——!?《炊事班的故事》讲述以一个普通连队的炊事班为切入点，讲述了30个不同的故事，通过发生在几个年轻软事员身上的日常小事，把火热的、绚丽多姿的军营生活演绎得淋漓尽致、妙趣横生。For example, in Java, the Selector's select () method is used to implement this synchronous blocking operation waiting for an event to occur. In the implementation of select () under Linux operating system, a) will call epollCtl (epfd, opcode, fd, events) to register the events that have been registered in Initiation Dispatcher into Linux system, where fd means Handle and events means Handle events that we are interested in; B) Synchronize the occurrence of a blocked wait registered event by calling the epollWait method. Events on different event sources may occur at the same time. Once an event is triggered, the epollWait method will return. C) Finally, find the associated SelectorKeyImpl object by the event that occurred, set the event that occurred to the ready state, and then put the SelectorKeyImpl into the selectedSet. In this way, we can get the event-ready SelectorKeyImpl collection through the Selector.selectedKeys () method.《更美好的事》的剧情基本上算是帕梅拉·奥德隆的半自传，讲述一位中产单身母亲女演员在整天工作之余，除了要照顾三个女儿的生活之外(分别由麦基·麦迪逊、汉娜·阿利格和奥利维亚·爱德华饰)，还得抽空应付住在对面街的英国籍母亲(西莉亚·伊姆瑞饰)的一桩桩家庭趣事。