decimal formatting pattern in Java

Question

I want format this number using java : 1546521.23 to 1 546 521.23 for exemple when i format this number 70000.0 it output 7 00 00

I tried this pattern but not work :

DecimalFormat decimalFormat = new DecimalFormat("### ###,##");

Answer 1

See the DecimalFormat documentation :

Symbol  Location    Localized?  Meaning
.       Number      Yes         Decimal separator or monetary decimal separator
,       Number      Yes         Grouping separator

Change code to

DecimalFormat decimalFormat = new DecimalFormat("### ###.##");

The comma needs to be replaced with a period.