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Java LocalDateTime Class | getDayOfYear() Method with Example

LocalDateTime Class getDayOfYear() method: Here, we are going to learn about the getDayOfYear() method of LocalDateTime Class with its syntax and example.
Submitted by Preeti Jain, on June 06, 2020

LocalDateTime Class getDayOfYear() method

  • getDayOfYear() method is available in java.time package.
  • getDayOfYear() method is used to get the field value day-of-year from this date-time object.
  • getDayOfYear() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
  • getDayOfYear() method does not throw an exception at the time of getting the day of the year.

Syntax:

    public int getDayOfYear();

Parameter(s):

  • None

Return value:

The return type of this method is int, it returns the value day-of-year field and the number of days in a year starts from 1 to 365 (i.e. for Non-Leap Year) or from 1 to 366 (i.e. for Leap Year).

Example:

// Java program to demonstrate the example 
// of getDayOfYear() method of LocalDateTime

import java.time.*;

public class GetDayOfWeekOfLocalDateTime {
    public static void main(String args[]) {
        // Instantiates two LocalDateTime
        LocalDateTime da_ti1 = LocalDateTime.parse("2005-10-05T10:10:10");
        LocalDateTime da_ti2 = LocalDateTime.now();

        // Display da_ti1, da_ti2
        System.out.println("LocalDateTime da_ti1 and da_ti2: ");
        System.out.println("da_ti1: " + da_ti1);
        System.out.println("da_ti2: " + da_ti2);

        System.out.println();

        // Here, this method returns the field value
        // day-of-week that is an enum DayOfWeek
        // from this date-time object (da_ti1)
        DayOfWeek dow = da_ti1.getDayOfWeek();

        // Display dow
        System.out.println("da_ti1.getDayOfWeek(): " + dow);

        // Here, this method returns the field value
        // day-of-week that is an enum DayOfWeek
        // from this date-time object (da_ti2)
        dow = da_ti2.getDayOfWeek();

        // Display dow
        System.out.println("da_ti2.getDayOfWeek(): " + dow);
    }
}

Output

LocalDateTime da_ti1 and da_ti2: 
da_ti1: 2005-10-05T10:10:10
da_ti2: 2020-06-05T02:47:28.362477

da_ti1.getDayOfWeek(): WEDNESDAY
da_ti2.getDayOfWeek(): FRIDAY
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