The two different code snippets(with minor change) show some error in calculations by joda time api:
First one: Gives correct result
DateTime date1 = new DateTime(2010,1,5, 0, 0, 0, 0);
DateTime date2 = new DateTime(2012,6,11, 0, 0, 0, 0);
Period age =new Period(date1,date2);
System.out.println(age.getYears()+" years "+age.getMonths()+" months "+age.getDays()+" days");
Gives result : 2 years 5 months 6 days
Second one: Gives incorrect result
Change in snippet : DateTime date2 = new DateTime(2012,6, 12 , 0, 0, 0, 0);
DateTime date1 = new DateTime(2010,1,5, 0, 0, 0, 0);
DateTime date2 = new DateTime(2012,6,12, 0, 0, 0, 0);
Period age =new Period(date1,date2);
System.out.println(age.getYears()+" years "+age.getMonths()+" months "+age.getDays()+" days");
Gives result : 2 years 5 months 0 days
Is this an error of calculation or am I missing some configuration?
I believe this is because the 7 days are now 1 week. What happens is that the largest possible value of time which will encapsulate the remainder will always be used.
IE If you have 8 days, this is 1 week and 1 day. If you have 294 days (depending on the start date), this is 1 year, 1 month, 1 week, and 1 day. Etc...
So what you need is something like:
System.out.println(age.getYears()+" years "+age.getMonths()+" months "+ (age.getWeeks()*7 + age.getDays()) +" days");
What has happened is that you have rolled a week. I would gather that if you tried "2012,6,13,0,0,0,0" as your inputs, you'd get a ...1 days
result.
Add a call to getWeeks
to make your output cleaner. Change your println to:
System.out.println(age.getYears()+" years "+age.getMonths()+" months "+age.getWeeks()+" weeks " + age.getDays()+" days");
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