YearMonth lengthOfYear() method in Java with Examples

The lengthOfYear() method of YearMonth class in Java is used to return the length of year of this year-month object’s value in number of days. The value of the length of a year is either 365 or 366 based on whether the Year is leap or not.

Syntax:

public int lengthOfYear()

Parameter: This method does not accepts any parameter.

Return Value: It returns an integer value denoting the length of year in number of days.

Below programs illustrate the lengthOfYear() method of YearMonth in Java:
Program 1:

// Program to illustrate the lengthOfYear() method

import java.util.*;
import java.time.*;

public class GfG {
    public static void main(String[] args)
    {
        // Create YearMonth object
        YearMonth yearMonth = YearMonth.of(2016, 2);

        // Print the length of year in Number
        // of days, 366 in this case as 2016 is
        // a Leap Year
        System.out.println(yearMonth.lengthOfYear());
    }
}

Output:

366

Program 2:

// Program to illustrate the lengthOfYear() method

import java.util.*;
import java.time.*;

public class GfG {
    public static void main(String[] args)
    {
        // Create YearMonth object
        YearMonth yearMonth = YearMonth.of(1990, 2);

        // Print the length of year in Number
        // of days, 365 in this case as 1990 is
        // not a Leap Year
        System.out.println(yearMonth.lengthOfYear());
    }
}

Output:

365

Reference: https://docs.oracle.com/javase/8/docs/api/java/time/YearMonth.html#lengthOfYear–