How to change all dot characters to comma for entire Android app?

Question

I use a lot decimal characters with dot. but they should be written with comma. Is there a way I can change all of them?

Answer 1

String.format("%,d", number)

or

DecimalFormat formatter = new DecimalFormat("#,###,###");
String yourFormattedString = formatter.format(5000);

or

DecimalFormatSymbols otherSymbols = new DecimalFormatSymbols(currentLocale);
otherSymbols.setDecimalSeparator(',');
otherSymbols.setGroupingSeparator('.'); 
DecimalFormat df = new DecimalFormat(formatString, otherSymbols);
currentLocale can be obtained from Locale.getDefault() i.e.:

Locale currentLocale = Locale.getDefault();