FernandoPaiva FernandoPaiva - 1 year ago 119
Java Question

How to set a fixed date with JodaTime?

I'm looking for any way to create a fixed day to month using JodaTime. I have a JSpinner to set integer values and I want get this value and create the Date. For example: JSpinner has 15, I want to create the date


How could I do this using JodaTime ?

Answer Source


The Joda-Time project is now in maintenance mode, with the team advising migration to the java.time classes. The java.time framework is built into Java 8 and later.

Much of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport and further adapted to Android in ThreeTenABP (see How to useā€¦).


The LocalDate class represents a date-only value without time-of-day and without time zone.

You can specify the year, month, and day-of-month.

LocalDate ld = LocalDate.of( 2016 , 1 , 15 );

You can switch months. The java.time classes use the Immutable Objects pattern, so a new fresh object is generated based on values of the original.

LocalDate september = ld.withMonth( 9 ); // 1-12 for January-December.

You can add/subtract months.

LocalDate nextMonth = ld.plusMonths( 1 );
LocalDate priorMonth = ld.minusMonths( 1 );

You can take any LocalDate and adjust the day to the 15th.

LocalDate today = LocalDate.now( ZoneId.of( "America/Montreal" ) );
LocalDate fifteenthThisMonth = today.withDayOfMonth( 15 );

Trap for a DateTimeException being thrown in the case of a day-of-month number invalid for that month, such as 31 for February.

By the way, you may find the YearMonth or MonthDay classes handy, and the Month enum too.


If you must use Joda-Time, it offers a LocalDate class quite similar to java.time.LocalDate.

LocalDate ld = new LocalDate( 2016 , 1 , 7 );
LocalDate fifteenthSameMonth = ld.withDayOfMonth( 15 );
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