DateFormat Fields Iteration

FieldsIteratorIteration.java

public class DateFormatTest extends TestFmwk {
    // ...
    public void test20741_ABFields() {
        ULocale locale = ULocale.forLanguageTag("en-001");
        DateTimePatternGenerator gen = DateTimePatternGenerator.getInstance(locale);
        String pattern = gen.getBestPattern("EEEEEBBBBB");
        SimpleDateFormat dateFormat = new SimpleDateFormat(pattern, locale);
        Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("PST8PDT"));
        calendar.setTime(new Date(0));

        AttributedCharacterIterator fieldsIterator = dateFormat.formatToCharacterIterator(calendar);
        Set keySet = fieldsIterator.getAllAttributeKeys();
        Iterator keyIterator = keySet.iterator();

        DateFormat.Field attr;
        while (keyIterator.hasNext()){
            attr = (DateFormat.Field)keyIterator.next();
        }
    }
}