Earlier I have talked about how to calculate a number of days between two dates in Java (see here), and now you will learn how to get the number of months and years between dates. Though it may look easy, it's not that easy to calculate months and years between dates, unless you take care of all kinds of nuisances like Daylight saving time and when daylight change occurs, leap seconds, and an extra day added in a leap year. Unfortunately, JDK doesn't have a standard method like Period.between() method of Java 8 before to solve this problem. So, if you have to calculate the number of months and years between given dates, you have three main options, first, use Calendar class to write your method to find a number of months and year between given dates, second, use Joda-time library and the third option is to upgrade to Java 8.
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