Question

Is there any way to split a double number in java so that all groups of 3 digits are splitted with a space and only 2 digits after a comma are appeared? It’s easy to separate them with a comma:

DecimalFormat df = new DecimalFormat("###,###.00");
df.format(number);

So that 235235.234 turns into 234,234.23

What I need is 234 234.23

How can I do that?

Answer 1

I believe the comma in your format string isn’t really a comma – it’s just the grouping symbol in the DecimalFormatSymbols you’re using.

Try this:

// TODO: Consider specifying a locale
DecimalFormatSymbols symbols = new DecimalFormatSymbols();
symbols.setGroupingSeparator(' ');
DecimalFormat df = new DecimalFormat("###,###.00", symbols);

Or as an alternative for the last line:

DecimalFormat df = new DecimalFormat();
df.setDecimalFormatSymbols(symbols);
df.setGroupingSize(3);
df.setMaximumFractionDigits(2);