java.time.YearMonth Class in Java

Java YearMonth class provides the output of the format "year-month". This class is an immutable class which means that it defines objects which, once created, never change their value. Any field which will be derived from a year and month, like quarter-of-year, are often obtained. This class does not store or represent a day, time or time-zone. For example, it would not show the value "November-2006-12:00" rather than it will show "2007-11". It inherits the thing class and implements the Comparable interface.

Java YearMonth class implements Temporal, TemporalAdjuster, Comparable<YearMonth>, Serializable

public final class YearMonth extends Object    

implements Temporal, TemporalAdjuster, Comparable<YearMonth>, Serializable  

Below is the implementation of some methods of the Java YearMonth class:

1. plus(): Returns a replica of this year-month with the required amount added.

// plus() Method implementation
import java.time.*;
public class Example {
    public static void main(String[] args)
    {
        YearMonth obj1 = YearMonth.now();

        // plus(Period.ofYears(int)) will add
        // no.of years to the existing year
        YearMonth obj2 = obj1.plus(Period.ofYears(0));
        System.out.println(obj2);
    }
}

2021-02

2. minus(): Returns a replica of this year-month with the required amount subtracted.

// minus() method implementation
import java.time.*;
public class Example {
    public static void main(String[] args)
    {
        YearMonth obj1 = YearMonth.now();

        //.minus(Period.ofYears(int)) will subtract
        // no. ofyears from the existing year
        YearMonth obj2 = obj1.minus(Period.ofYears(3));
        System.out.println(obj2);
    }
}

2018-02