正确格式化货币到小于Locale指定的小数位(Correctly formatting currencies to more decimal places than the Locale specifies)

 在法国和其他国家/地区，货币符号在货币金额之后，而在其他国家则在之前，加上小数分隔符是逗号而不是点（ £0.00对0,00 € ）。 
 
 如果我在我的Android设备上使用以下Java代码（来自内存，可能无法编译），我可以获得一个正确格式化的NumberFormat ： 
 
NumberFormat format = NumberFormat.getCurrencyInstance(Currency.get(Locale.FRANCE));
 
 此NumberFormat格式化为正确的小数位数（在上面的示例中为两个）。 
 
 我想格式化为金融应用程序的10位小数，同时保持小数点分隔符和“符号侧”正确。 
 
 我很乐意构建自己的格式表达式 - 问题是找到特定Locale或Country 。 有没有办法在运行时从Java / Dalvik VM中找到它，或者我只是需要对其进行硬编码？ 
 
 硬编码并不是一个真正的问题，因为我只有大约20种货币需要担心，但显然如果它可以派生，那就更容易:) 

In France and other countries, the currency symbol is after a monetary amount while in others it is before, plus, the decimal separator is a comma rather than a point (£0.00 vs 0,00 €).
 
If I use the following Java code (from memory, may not compile) on my Android device, I can get a NumberFormat which formats things correctly:
 
NumberFormat format = NumberFormat.getCurrencyInstance(Currency.get(Locale.FRANCE));
 
This NumberFormat formats to the correct number of decimal places (two in the above examples).
 
I would like to format to 10 decimal places for a financial app, while keeping the decimal separator and 'symbol side' correct.
 
I can quite happily build my own format expression - the problem is finding out the information for a particular Locale or Country. Is there a way of finding this out at runtime from the Java/Dalvik VMs or am I just going to have to hard code it?
 
Hard coding it isn't really a problem as I only have about 20 currencies to worry about, but obviously if it can be derived then that is even easier :)

原文：https://stackoverflow.com/questions/5003609