The addYears() is a DateUtilsused to add a given number of years to the Date object and return a new Date object. The original date object remains unchanged.
DateUtilsThe definition of the DateUtils can be found in the Apache Commons Lang package that we can add to the Maven project by adding the following dependency to the pom.xml file:
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.12.0</version>
</dependency>
For other versions of the commons-lang package, refer to the Maven Repository.
You can import the DateUtils class as follows:
import org.apache.commons.lang3.time.DateUtils;
public static Date addYears(final Date date, final int amount)
final Date date: The date to add to.final int amount: The number of years to add, it can be positive or negative.This method returns a new Date with the number of years added.
In the code below, we add the number of years in the yearsToAdd variable to the currDate object with the help of the addYears() method and print the new object to the console.
import org.apache.commons.lang3.time.DateUtils;import java.util.Date;public class Main{public static void main(String[] args) {Date currDate = new Date();int yearsToAdd = 1;Date newDate = DateUtils.addYears(currDate, yearsToAdd);System.out.printf("%s + %s years = %s", currDate, yearsToAdd, newDate);}}
The output of the code will be:
Sun Nov 21 03:20:03 IST 2021 + 1 years = Mon Nov 21 03:20:03 IST 2022
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