Formatting a number String according to format String

Question

I have a String representing a number (e.g. 1234.56) and a String representing a format (e.g. 1,234.56 or 1 234.56 or 1234,56...) and need to format the number String according to the format String. Both Strings are given.

Some code for better underdstanding:

public static void main(String[] args) {
    String number = "1000.0";
    formatNumber(number, "1,234.56"); //Should be 1,000.00
    formatNumber(number, "1 234.56"); //Should be 1 000.00
    formatNumber(number, "1234,56"); //Should be 1000,00
}

public static String formatNumber(String number, String format) {
    return ???
}

Whats the best way to achieve that?

Thanks Paul

use decimal format as menthioned in this thread [Link][1] [1]: stackoverflow.com/questions/6376226/… — muneebShabbir
– muneebShabbir, Commented Apr 9, 2013 at 9:14

Boris Strandjev · Accepted Answer · 2013-04-09 09:14:59Z

2

These three lines should do.

String pattern = format.replaceAll("\\d", "#");
DecimalFormat myFormatter = new DecimalFormat(pattern);
return myFormatter.format(value);

I am writing by heart, so write back if you encounter problems

answered Apr 9, 2013 at 9:14

Boris Strandjev

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