Add commas (grouping separator) to number without modifying decimals?

Question

I\'m trying to format a string to add commas between 3 digit groups

EG:

1200.20 >> 1,200.20
15000   >> 15,000

I\'m tryi

Answer 1

You should be able to do exactly what you want:

http://docs.oracle.com/javase/tutorial/i18n/format/decimalFormat.html

DecimalFormat myFormatter = new DecimalFormat("$###,###.###");
String output = myFormatter.format(12345.67);
System.out.println(value + " " + pattern + " " + output);