数组的最大大小 - 类型不匹配:无法从 long 转换为 int [英] Maximum size of an array - Type mismatch: cannot convert from long to int

问题描述

我看到数组的最大大小只能是 Int 的最大大小.为什么 Java 不允许长度为 long-Max 的数组?

I see that the maximum size of an array can be only maximum size of an Int. Why does Java not allow an array of size long-Max ?

long no = 10000000000L;
int [] nums = new int[no];//error here

推荐答案

您必须向 Java 设计人员解决为什么"的问题.其他人只能猜测.我的猜测是，他们认为 20 亿个元素的数组应该对任何人都足够了(公平地说，这可能是).

You'll have to address the "why" question to the Java designers. Anyone else can only speculate. My speculation is that they felt that a two-billion-element array ought to be enough for anybody (which, in fairness, it probably is).

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