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ArrayList底层数组扩容原理 - Java那些事儿专栏
source link: https://juejin.im/post/59dd70966fb9a0452845741e
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ArrayList部分一共五篇文章了，并且引入了时间复杂度来分析，强烈建议大家一定要按顺序阅读，本文是第2篇，相关文章分别是：1、ArrayList初始化 - Java那些事儿专栏再次强调，ArrayList是一个普通的类，如果我们开心，可以自己写一个。Arr
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