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Each object has its corresponding state, and each state corresponds to some corresponding behaviors. If an object has multiple states, there will be many behaviors. Then the judgment of these states and the behavior completed according to the states will lead to multiple conditional statements, and if a new state is added, the existing code needs to be changed. This kind of design obviously violates the principle of opening and closing, and the state mode is used to solve such problems.　　出镜的名人包括奥普拉·温弗瑞、格洛丽亚·斯泰纳姆、珍·古道尔、斯派克·李、林-曼努尔·米兰达、斯蒂夫·旺达、亚历山德拉·莱斯曼、雅拉·沙希迪等。美国飞虎队员本尼达远赴中国帮助抵抗日军侵略。在一次空战中被日机击落身负重伤。日军为得到美军情报，在飞机失事地区展开疯狂搜捕。新四军第五师李师长接到美军救援指示，立即部署营救计划。在当地群众、游击队和新四军五师的联合营救下，艰难而又机智的突破了日军的一道道封锁线，最终将飞虎队员本尼达顺利转交到前来接应的部队手中。在展开营救的行动中，中国人民及新四军舍身忘死保护重伤在身的本尼达。由此主人会延续六十年的真挚友谊。六十年后，这群美国客人和中国主人一起在当年落下飞机的水塘边，照下了一张照片。112. X.X.261. First, download the jdk installation package of the corresponding operating system from Oracle website.