How To Use Interval and Duration Classes of Joda Library

In this blog, I am going to tell you how we can use Interval, Period, Duration classes These classes are very helpful for me to find out duration, months, overlaps interval and much more but you can use these classes for many other things.

Interval: An interval represents a duration of time between two-instants. Interval class is the basic implementation of an immutable interval of time. The start is always lessthen or equal to end instant. Intervals are exclusive of the end instant and inclusive of the start. Interval is thread-safe and immutable.

So we start with this class.

DateTimeFormatter formatter = DateTimeFormat.forPattern("dd/MM/yyyy HH:mm");
DateTime startTime = formatter.parseDateTime("20/01/2018 00:00");

DateTime endTime = formatter.parseDateTime("23/01/2018 00:00");

Interval? interval = new Interval(startTime, endTime);    //This will create the Object of Interval

 

After that try these methods of Interval using System out like this

        System.out.println("Interval  :-" + interval);
        System.out.println("StartTime   :-" + interval.getStart());
        System.out.println("EndTime     :-" + interval.getEnd());

        System.out.println("no of Days    :-" + interval.toDuration().getStandardDays());
        System.out.println("no of Hours   :-" + interval.toDuration().getStandardHours());
        System.out.println("no of Minutes :-" + interval.toDuration().getStandardMinutes());
        System.out.println("no of Seconds :-" + interval.toDuration().getStandardSeconds());

        // Add one more Day to the interval
        interval:-interval.withEnd(interval.getEnd().plusDays(1));
        System.out.println("Interval :-" + interval);

Out put will be :

Interval  :- 20-01-2018 00:00:00:000+5:30/23-01-2018 00:00:00:000+5:30
StartTime   :- 20-01-2018 00:00:00:000+5:30
EndTime     :- 23-01-2018 00:00:00:000+5:30

no of Days    :- 3
no of Hours   :- 72
no of Minutes :- 4320
no of Seconds :- 259200

// Add one more Day to the interval
interval:-interval.withEnd(interval.getEnd().plusDays(1));
Interval :- 20-01-2018 00:00:00:000+5:30/24-01-2018 00:00:00:000+5:30?
 

And Try Other Things:

System.out.println("Contain now :"+interval.containsNow());
System.out.println("Contain Date :"+interval.containsNow(formatter.parseDateTime("21/01/2018 03:41")));
DateTime otherStartTime = formatter.parseDateTime("23/01/2018 03:41");
DateTime otherEndTime = formatter.parseDateTime("30/01/2018 00:00");
Interval otherInterval = new Interval(otherStartTime,otherEndTime);
System.out.println("Interval overlaps :"+interval.overlaps(otherInterval));
System.out.println("OverLaped Interval :"+interval.overlap(otherInterval));

The output will be:

Contain now : false
Contain Date : true
Interval overlaps : true
OverLaped Interval : 23-01-2018 03:41:00:000+5:30/24-01-2018 00:00:00:000+5:30

        Duration intervalDuration = new Duration(startTime, endTime);
         
        //Or You can use Interval toDuration method like this
       
        Duration intervalDuration = interval.toDuration();
        System.out.println("interval Duration :-" + duration);
        System.out.println("no of Days    :-" + duration.getStandardDays());
        System.out.println("no of Hours   :-" + duration.getStandardHours());
        System.out.println("no of Minutes :-" + duration.getStandardMinutes());
        System.out.println("no of Seconds :-" + duration.getStandardSeconds());

Output will be:

interval Duration :- PT7689600S
no of Days    :- 4
no of Hours   :- 96
no of Minutes :- 5760
no of Seconds :- 345600

 

Period:-An time period specifying a set of duration hours,days fields values. A immutable time period is divided into a number of fields, such as hours and seconds.
Which no of fields are supported which is defined in the PeriodType class. The standard period type, which supports months, years, weeks, hours, days, minutes, seconds and millis.A period is immutable and thread-safe, provided that the PeriodType is as well.All PeriodType classes supplied are immutable and thread-safe.

Period period = new Period(startTime,endTime);

//Or You can use Interval toPeriod method like this

Period period = interval.toPeriod();

System.out.println("interval Period:-" + period);
System.out.println("no of Days    :-" + period.getDays());
System.out.println("no of Hours   :-" + period.getHours());
System.out.println("no of Minutes :-" + period.getMinutes());
System.out.println("no of Seconds :-" + period.getSeconds());

Output will be:

no of Days    :- 4
no of Hours   :- 96
no of Minutes :- 5760
no of Seconds :- 345600

You can Try many other method of these classes Thanks.