Formatting currency digits with commas

Question

I am using a java webapp, In Java class i use a Remote server API to get values like 48938493843894. I export these values to a .XLSX file. I want to format this number like $48,938,493,843,894 at the java class and export to .xlsx file.

How can i do this in Java?

Answer 1

For formatting currency it's better to use NumberFormat.getCurrencyInstance() (look at http://docs.oracle.com/javase/6/docs/api/java/text/NumberFormat.html#getCurrencyInstance) and for limiting fractional part there is NumberFormat.html#setMaximumFractionDigits method.

Answer 2

Use pattern ###,###.### to format it.

        String str = "48938493843894";
        String pattern="###,###.###";
        DecimalFormat myFormatter = new DecimalFormat(pattern);
        String output = myFormatter.format(Double.parseDouble(str));
        System.out.println(output);