Java集合HashMap源码解析的相关内容

Java 集合系列07--- HashMap详细介绍(源码解析)----新(二)

put 方法的源码解析put方法是操作HashMap是最常用的方法，它的就用就是将数据放到HashMap中，其流程图如下所示：如上所示主要有一下几个步骤：首先判断散列表是否为空，为空的话则先初始化数组。根据键值key计算hash值并得到插入的数组索引如果索引值没有被占用则直接插入键值对如果索引值被占...

Java 集合系列07--- HashMap详细介绍(源码解析)----新(一)

前言今天学习了基于JDK1.8的HashMap的源码，主要从如下几个方面来阐述，HashMap的数据结构，HashMap如何支持动态扩容，HashMap的散列函数是如何实现的，并且如何防止散列冲突，最后就是对HashMap的常用方法的源码解析。目录HashMap的数据结构HashMap的散列函数散列...

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Java 集合系列07--- HashMap详细介绍(源码解析)

这一章，我们对HashMap进行学习。HashMap介绍HashMap是一个散列表，它存储的内容是键值对（key-value）映射。HashMap继承于AbstractMap,实现了Map,Cloneable,java.io.Serializable接口HashMap的实现不是同步的，这意味着它是线...

Java集合之HashMap源码解析

HashMap HashMap 是 Map 的一个实现类，它代表的是一种键值对的数据存储形式。大多数情况下可以直接定位到它的值，因而具有很快的访问速度，但遍历顺序却是不确定的。 HashMap最多只允许一条记录的键为null，允许多条记录的值为null。不保证有序(比...

Java 集合系列10之 HashMap详细介绍(源码解析)和使用示例

概要这一章，我们对HashMap进行学习。我们先对HashMap有个整体认识，然后再学习它的源码，最后再通过实例来学会使用HashMap。内容包括：第1部分 HashMap介绍第2部分 HashMap数据结构第3部分 HashMap源码解析(基于JDK1.6.0_45) ...

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