强制点(“.")作为java中的小数分隔符

2022-01-12 00:00:00 formatting double java

我目前使用以下代码打印双精度:

I currently use the following code to print a double:

return String.format("%.2f", someDouble);

这很好用,除了 Java 使用我的语言环境的小数分隔符(逗号)而我想使用点.有没有简单的方法可以做到这一点?

This works well, except that Java uses my Locale's decimal separator (a comma) while I would like to use a point. Is there an easy way to do this?

推荐答案

使用String.format 可让您指定语言环境:

Use the overload of String.format which lets you specify the locale:

return String.format(Locale.ROOT, "%.2f", someDouble);

如果您仅 格式化数字 - 就像您在这里一样 - 那么使用 NumberFormat 可能更合适.但是,如果您需要 String.format 的其余格式化功能,这应该可以正常工作.

If you're only formatting a number - as you are here - then using NumberFormat would probably be more appropriate. But if you need the rest of the formatting capabilities of String.format, this should work fine.

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