如何在 Java 中将非常大的字符串转换为数字 [英] How Do I convert very big String to number in Java

问题描述

我有一个像这样的大字符串:

Hi I have a big string like this :

999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999"

"999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999"

我希望将此字符串转换为长字符串.但我失败了.我做到了:

I wish to convert this string to long. But I failed. I did:

Long.parseLong(longString);

但我收到一个错误:

java.lang.NumberFormatException: For input string: "99999999.......

有什么办法可以避免这种情况吗?

Are there any way to avoid this?

推荐答案

使用 BigInteger 类如下:

 BigInteger number = new BigInteger(longString);

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