Java arraylist源码-阿里云

Java集合学习：ArrayList源码详解

前言ArrayList可谓在工作中使用很频繁的容器了，其底层采用数组作为存储结构，其特点取值速度快，下面通过源码来了解下它的原理。正文重要属性结构下面来看下ArrayList的一些重要属性 //默认数组初始容量 private static final int DEFAULT_CAPACITY = ...

Java ArrayList 源码

ArrayList 概述ArrayList 是基于数组实现，是一个动态数组，容量可以自动增长，动态增加内存。ArrayList 不是线程安全的，只能用在单线程，多线程换成环境下可以考虑 Collections.synchronizedList(List l) 函数返回一个线程安全的 ArrayLis...

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Java之ArrayList源码浅析

ArrayList特点优点：有序，访问元素速度快. 缺点：插入，删除速度慢。 JDK1.8.131版本。首先查看ArrayList实例化方法相关代码。 private static final Object[] DEFAULTCAPACITY_EMPTY_ELEMENTDATA = {}; tr...

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更新时间 2023-06-17 09:09:41

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