SimpleDateFormat pattern based on locale, but forcing a 4-digit year

Question

I need to build a date format like dd/MM/yyyy. It\'s almost like DateFormat.SHORT, but contains 4 year digits.

I try to implement it with

Answer 1

I have similar way to do this, but I need to get the locale pattern for the ui controller.

So here's the code

            // date format, always using yyyy as year display
        DateFormat dateFormat = DateFormat.getDateInstance(DateFormat.SHORT, locale);
        SimpleDateFormat simple = (SimpleDateFormat) dateFormat;
        String pattern = simple.toPattern().replaceAll("\\byy\\b", "yyyy");
        System.out.println(pattern);