DateFormatSymbols symbols = new DateFormatSymbols(this.locale);
   symbols.getShortWeekdays();

Calendar cal = Calendar.getInstance();
    DateFormat dayFormat = new SimpleDateFormat("EE", this.locale);
    for (int i = 0; i < 7; i++) {
        cal.set(Calendar.DAY_OF_WEEK, i);
        System.out.println(dayFormat.format(cal.getTime()));
    }