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在Java中如何优雅地判空
source link: https://juejin.im/post/5bf60e286fb9a049dd7fe9f8
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判空灾难 作为搬砖党的一族们，我们对判空一定再熟悉不过了，不要跟我说你很少进行判空，除非你喜欢NullPointerException。 不过NullPointerException对于很多猿们来说，也是Exception家族中最亲近的一员了。
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