CODEWITHSUNDEEP
javajodatime
nebula
nebula

Reputation: 3982

Joda Time : Set day of the week and week of the month

I am using Joda time and i have a problem to set day of the week and week of the month. Suppose if i select April 23,2013 which is (3rd day of 4th week of the month) i want next date 3rd day of 4th week of the month which is May 21. Is there a way to do this?

Upvotes: 2

Views: 5450

Answers (2)

Marcelo Rebouças
Marcelo Rebouças

Reputation: 699

I dont recomended the uses of calendar api because it is very complicated... isn't simplest... as Ilya said.

The very simples is jodatime api. you can use those many methods of joda api for get many results of simplest form:

Then you can do this:

Returns the third day of week of current date:

Datetime dateTime = DateTime.now().withDayOfWeek(3)

Set the especific month, in this case April:

dateTime = dateTime.withMonthOfYear(4)

I dont know if jodatime has the method for get week of the month, but you can search better in the jodatime api doc Exists the methods:

.withWeekOfWeekyear(int)
and
.withWeekyear(int)

At method that starts with word : .with... (Ex.: dateTime.withHourOfDay(2)) you can get many results. Look there and have fun...

Abs!

Upvotes: 3

Ilya
Ilya

Reputation: 29693

The simplest way to do it is next : use class java.util.Calendar 

   static DateTime nextMonth(final DateTime current)
   {
      final Calendar curr = current.toCalendar(Locale.getDefault());
      final Calendar retVal = Calendar.getInstance();
      retVal.set(Calendar.DAY_OF_WEEK, curr.get(Calendar.DAY_OF_WEEK));
      retVal.set(Calendar.WEEK_OF_MONTH, curr.get(Calendar.WEEK_OF_MONTH));
      retVal.set(Calendar.MONTH, curr.get(Calendar.MONTH) + 1);
      return new DateTime(retVal).withMillisOfDay(0);
   }

Usage

DateTime dateTime = new DateTime(2013, 04, 23, 0 ,0 ,0 ,0); //April 23,2013
DateTime nextMonth = nextMonth(dateTime); // May 21, 2013

Upvotes: -2

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