Java FRANCE / FRENCH Locale千位分隔符看起来像空间但实际上不是 [英] Java FRANCE/FRENCH Locale thousands separator looks like space but not actually

问题描述

如果我在FRANCE / FRENCH语言环境中转换一个数字，它应该使用空格作为千​​位分隔符。如果我尝试用其他字符替换空格，则找不到任何空格。

If I convert a number in FRANCE/FRENCH locale it should use space as thousands separator. If I try to replace the spaces with some other characters, it does not find any space.

String input = NumberFormat.getNumberInstance(Locale.FRANCE).format(123123123);
System.out.println("String after conversion in locale "+input);
input = input.replace(" ", ".");
System.out.println("After replace space with dot      "+input);

输出

String after conversion in locale 123 123 123
After replace space with dot      123 123 123

因此虽然分隔符看起来像空格，但它是不同的东西。什么是确切的字符？如何在input.replace（）中指定该字符，以便我可以用点替换它？

So though separator looks like space it is something different. What is the exact character ? How can I specify that character in input.replace() so that I can replace it with dot ?

推荐答案

正如< a href =https://stackoverflow.com/users/984823/joop-eggen> Joop Eggen 他的回答是 \ u00a0 不间断的空间。

作为一种解决方法，我得到了千分隔符如下

As a work around, I got the thousand separator as follows

String input = NumberFormat.getNumberInstance(Locale.FRANCE).format(123123123);
System.out.println("String after conversion in locale "+input);

DecimalFormat df = (DecimalFormat) NumberFormat.getNumberInstance(Locale.FRANCE);
DecimalFormatSymbols symbols = df.getDecimalFormatSymbols();
char thousandSep = symbols.getGroupingSeparator();

input = input.replace(thousandSep, '.'); 

按预期工作

String after conversion in locale 123 123 123
After replace space with dot      123.123.123

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