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为什么系列之重写equals方法必须重写hasCode方法？-爱咖啡
source link: https://blog.51cto.com/4837471/2447956
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Object源代码及注释equals是Object的公有方法，那么我们通常都会在自己的类中重写这个equals方法，同时必须重写hasCode方法，知道为什么重写equals方法必须重写hasCode方法呢？/***Returnsahashcodevaluefortheobject.Thismethodis*supportedforthebenefitofhashtablessuchasthose
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