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1、背景今天有一个朋友问到一个为什么 ArrayList 源码扩容方法中，数组长度最大值是 MAX_ARRAY_SIZE = Integer.MAX_VALUE - 8 的问题（真的是MAX_ARRAY_SIZE？）。并给出下列截图：2、别急，让我们捋一捋我们先搞清楚这里几个关键变量的含义：mi...

在Java中将ArrayList转换为Array

我有一个ArrayList，其值类似于“ abcd＃xyz”和“ mnop＃qrs”。我想将其转换为数组，然后使用＃作为分隔符将其拆分，并在数组中使用abcd，mnop，在另一个数组中使用xyz，qrs。我尝试了以下代码： String dsf[] = new String[al.size()]; ...

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更新时间 2024-02-13 09:25:28

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