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【深入挖掘Java技术】「源码原理体系」盲点问题解析之HashMap工作原理全揭秘（上）

知识盲点概念介绍 HashMap是基于Map接口构建的数据结构，它以键值对的形式存储元素，允许键和值都为null。由于键的唯一性，HashMap中只能有一个键为null。HashMap的特点是元素的无序性和不重复性。注意，HashMap并不是线程安全的。在多线程环境下，如果不进行适当的同步处理，...

java源码-HashMap

开篇这篇文章的主要是想把HashMap进行一个讲解，在上一篇java源码-HashSet当中其实已经提到过了一点点HashMap的源码实现了，这篇文章会更加详细的进行讲解，顺带会讲解一些比较奇妙的源码实现。 HashMap类图 HashMap类图数据结构在jdk1.8的HashMap的数据...

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JAVA源码走读（一） HashMap与ArrayList

HashMap 一、HashMap基本概念： HashMap是基于哈希表的Map接口的实现。此实现提供所有可选的映射操作，并允许使用null值和null键。此类不保证映射的顺序，特别是它不保证该顺序恒久不变。 HashMap不是线程安全的，如果想要线程安全的HashMap，可以通过Collectio...

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