How to get the pattern of Number Format of a specific locale?

Question

I have a simple question:

How to get the pattern used to format a number using NumberFormat created for a specific locale as shown below:

Answer 1

The subclasses DecimalFormat and ChoiceFormat have a method toPattern(), so you must check using instanceof and call toPattern()

  String pattern = null;
   if (numberFormat instanceof DecimalFormat) {
       pattern = ((DecimalFormat)numberFormat).toPattern();
   }

Consider DecimalFormat.toLocalizedPattern() too