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走进 JDK 之 Enum

 4 years ago
source link: https://juejin.im/post/5cb874e2f265da0387339a6c
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什么是枚举 什么是枚举？说实话，在我这些年的开发生涯中，用过枚举的次数大概两只手都可以数的过来。当然你不能说枚举一无是处，只能说是我对 Java 理解的还不够深刻，在可以使用枚举的时候并没有去使用。 假设我有两个孩子（其实不用假设），每到周末他们都不知道去上什

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