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Given a locale java.text.NumberFormat:
NumberFormat numberFormat = NumberFormat.getInstance(); How can I get the character used as Decimal separator (if it's a comma or a point) in that numberformat? How can I modify this property without having to use new DecimalFormat(format)?
Thanks
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This symbol can be a period ("."), as is common in United States and other English-speaking countries, or a comma (","), as in continental Europe. Decimal point and decimal comma are also common names for the decimal separator.
Click File > Options. On the Advanced tab, under Editing options, clear the Use system separators check box. Type new separators in the Decimal separator and Thousands separator boxes.
With the DecimalFormatSymbols#setDecimalSeparator() method we can change the decimal separator and with the DecimalFormatSymbols#setGroupingSeparator() method we can change the grouping separator.
In a locale such as French, the comma is the decimal separator (3,01). The thousands-separator symbol can show between groups of digits in the part of the numeric value. In the default locale, the comma is the thousands separator (3,255). In a French locale, the space is the thousands separator (3 255).
The helper class DecimalFomatSymbols is what you are looking for:
DecimalFormat format = (DecimalFormat) DecimalFormat.getInstance(); DecimalFormatSymbols symbols = format.getDecimalFormatSymbols(); char sep=symbols.getDecimalSeparator(); To set you symbols as needed:
//create a new instance DecimalFormatSymbols custom=new DecimalFormatSymbols(); custom.setDecimalSeparator(','); format.setDecimalFormatSymbols(custom); EDIT: this answer is only valid for DecimalFormat, and not for NumberFormat as required in the question. Anyway, as it may help the author, I'll let it here.
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