jdk hashmap扩容的相关内容

面试官:JDK1.8 HashMap扩容rehash算法是如何优化的？

大家好，我是三友~~ 本文跟大家聊一聊一个常见的面试题，那就是JDK1.8 HashMap扩容rehash算法是如何优化的？众所周知HashMap的底层其实是一个数组，既然是一个数组，必然长度是固定的，也就一定存在扩容的问题。在JDK1.7的时候，是将数组扩容为两倍，然后将HashMap中所有的k...

JDK1.7与JDK1.8中HashMap的扩容

基础知识注意Java中散列表用链表数组实现，每个链表被称为桶，想要查找表中对象的位置，就要先计算它的散列码，然后与桶的总数取余数，所得到的结果就是保存这个元素桶的索引。hash：翻译为”散列表“，就是把任意长度的输入，通过散列算法，变成固定长度输出，该输出结...

JDK的选型、安装与配置

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