为什么我不能指定'长'值40亿？ [英] Why can't I assign a 'long' a value of 4 billion?

问题描述

我正在尝试在Java中声明一个long值，但遗憾的是它不起作用。

I'm trying to declare a long value in Java, which unfortunately does not work.

这是我的代码。它会导致以下错误消息：int类型的文字4294967296超出范围。

This is my code. It results in the following error message: "The literal 4294967296 of type int is out of range".

long bytes = 4294967296;

我需要这个值来制作一个文件过滤器来筛选出大于4294967296字节的文件（4GB） ）。相反的方式没有任何问题（ long size = file.length（））与每个文件大小，这就是为什么我无法弄清楚为什么我的声明不是工作。

I need this value to make a file filter that filters out files that are bigger than 4294967296 bytes (4GB). The other way round works without any issues (long size = file.length()) with every file size, which is why I can't figure out why my declaration is not working.

推荐答案

将 L 添加到数字的末尾：

long bytes = 4294967296L;

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