Formatting numbers using DecimalFormat

Question

I am trying to format prices using DecimalFormat, but this isn\'t working for all variations.

DecimalFormat df = new DecimalFormat(\"0.##\")
df.format(7.8)
d         


        

Answer 1

Use the BigDecimal number class instead:

e.g. if n is a BigDecimal, then you can use

String s = NumberFormat.getCurrencyInstance().format(n);

By the way, it's best practice to use BigDecimal when working with money.