Java: Format Numbers with commas

Question

I just want the numbers to be output in "well readable" format. e.g. you can output 100000 as 100.000 which would be more readable.

Is there an already existing method that can be used for this?

Answer 1

You can use NumberFormat:

int n = 100000;
String formatted = NumberFormat.getInstance().format(n);
System.out.println(formatted);

Output:

100,000