Get week in month in hijri calendar in time4j

Question

I'm trying to set hijri calendar to for example 3rd Wednesday of hijri months.
After some search, I reach to this code:

 PlainDate date = PlainDate.of(2017, 3, 1); // first of march 2017
 System.out.println(date.with(WEEKDAY_IN_MONTH.setToThird(WEDNESDAY)));

But as you can see this sets calendar to 3rd Wednesday of gregorian calendar.
Is there any way to set 3rd Wednesday of month for other calendars in time4j lib?

I have opened a new [issue](https://github.com/MenoData/Time4J/issues/653) on the issue tracker of Time4J. In the meantime, the only workaround for this missing new feature would just be: iterating over all days of a given month and counting how often the searched weekday has happened. — Meno Hochschild, May 26 '17 at 19:06
I have now implemented the new feature for version v3.33 (but not yet released). — Meno Hochschild, Jun 14 '17 at 11:54
great job my friend with this lib . I look forward to seeing the new release. — max, Jun 14 '17 at 12:55

score 0 · Accepted Answer · answered Sep 08 '17 at 05:20

Sorry for late answer although the solution is already available since end of July 2017 in release v4.28/3.33. (I am now busy with overnext release v4.29/3.34 (sunrise/sunset-calculations)).

Every month-based calendar (including the HijriCalendar) supports a WEEKDAY_IN_MONTH-element since Time4A-version v3.33-2017b. It is chronology-specific because the month definition is different for every calendar. Example:

HijriCalendar hijri =
  HijriCalendar.of(
    HijriCalendar.VARIANT_UMALQURA, 1395, HijriMonth.RAMADAN, 1); // Sunday, 1975-09-07
assertThat(
  hijri.with(HijriCalendar.WEEKDAY_IN_MONTH.setTo(3, Weekday.WEDNESDAY)),
  is(hijri.plus(17, HijriCalendar.Unit.DAYS))); // AH-1395-09-18

More examples how to use the new element can be found in the JUnit-test. The new element can also be used in format patterns with the CLDR-pattern-symbol "F". I show both the builder- and the pattern-based approach:

    ChronoFormatter<HijriCalendar> f1 =
        ChronoFormatter.setUp(HijriCalendar.family(), Locale.ENGLISH)
            .addEnglishOrdinal(HijriCalendar.WEEKDAY_IN_MONTH)
            .addPattern(" EEEE 'in' MMMM", PatternType.CLDR)
            .build();
    assertThat(f1.format(hijri), is("1st Sunday in Ramadan"));

    ChronoFormatter<HijriCalendar> f2 =
        ChronoFormatter.ofPattern(
            "F. EEEE 'im' MMMM", 
            PatternType.CLDR, 
            Locale.GERMAN, 
            HijriCalendar.family());
    assertThat(f2.format(hijri), is("1. Sonntag im Ramadan"));

Side note: The new FrenchRepublicanCalendar (also introduced in v4.28/3.33) has no support for WEEKDAY_IN_MONTH because a) it uses a 10-day-week and b) some days (the sansculottides) are not part of any month.

Get week in month in hijri calendar in time4j

1 Answers1