Questions tagged [jodatime]

Joda-Time is a library which can be used as a replacement for the Java date and time classes. From Java SE 8 onwards, users are asked to migrate to java.time (JSR-310).

Sample Code

This sample is provided from code written as part of an interval type enum which could calculate a series of dates at that interval. It provides a great example of what it looks like to call some common methods on Joda's DateTime object.

public DateTime getNextDate(DateTime dt, int interval) {
    switch(this) {
    case SECOND:
        return dt.plusSeconds(interval);
    case MINUTE:
        return dt.plusMinutes(interval);
    case HOUR:
        return dt.plusHours(interval);
    case DAY:
        return dt.plusDays(interval);
    case WEEK:
        dt = dt.plusDays(3).plusWeeks(interval - 1);
        return dt.withDayOfWeek(6);
    case MONTH:
        dt = dt.plusDays(3).plusMonths(interval - 1);
        return dt.withDayOfMonth(dt.dayOfMonth().getMaximumValue());
    case QUARTER:
        dt = dt.plusDays(3).plusMonths((interval - 1) * 3);
        dt = dt.plusMonths((3 - (dt.getMonthOfYear() % 3)) % 3);
        return dt.withDayOfMonth(dt.dayOfMonth().getMaximumValue());
    case YEAR:
        dt = dt.plusDays(3).plusYears(interval - 1);
        return dt.withDayOfYear(dt.dayOfYear().getMaximumValue());
    }
    return dt;
}

Some helpful SO posts

• Should I use Java date and time classes or go with a 3rd party library like Joda Time?
• Joda: what's the difference between Period, Interval and Duration?
• Convert from java.util.date to JodaTime

Useful Links

• Official Homepage of Joda-Time Library
• Jodatime javadoc