The plusYears() method of LocalDate class in Java is used to add the number of specified years in this LocalDate and return a copy of LocalDate.
This method adds the years field in the following steps:
- Add the years to the year field.
- Check if the date after adding years is valid or not.
- If date is invalid then method adjust the day-of-month to the last valid day.
For example, 2016-02-29 (leap year) plus one year gives date 2017-02-29 but this is invalid result, so the last valid day of the month, 2017-02-28, is returned.This instance is immutable and unaffected by this method call.
public LocalDate plusYears(long yearsToAdd)
Parameters: This method accepts a single parameter yearsToAdd which represents the years to add, may be negative.
Return value: This method returns a LocalDate based on this date with the years added, not null.
Exception: This method throws DateTimeException if the result exceeds the supported date range.
Below programs illustrate the plusYears() method:
LocalDate before adding years: 2018-11-13 LocalDate after adding years: 2021-11-13
LocalDate before adding years: 2016-02-29 LocalDate after adding years: 2018-02-28
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