java.time.LocalDateTime.withDayOfYear() Method Example

Description

The java.time.LocalDateTime.withDayOfYear(int dayOfYear) method returns a copy of this LocalDateTime with the day-of-year altered.

Declaration

Following is the declaration for java.time.LocalDateTime.withDayOfYear(int dayOfYear) method.

public LocalDateTime withDayOfYear(int dayOfYear)

Parameters

dayOfYear − the day-of-year to set in the result, from 1 to 365-366.

Return Value

a LocalDateTime based on this date with the requested day, not null.

Exceptions

DateTimeException − if the day-of-year value is invalid, or if the day-of-year is invalid for the year.

Example

The following example shows the usage of java.time.LocalDateTime.withDayOfYear(int dayOfYear) method.

package com.tutorialspoint;

import java.time.LocalDateTime;

public class LocalDateTimeDemo {
   public static void main(String[] args) {
      
      LocalDateTime date = LocalDateTime.parse("2017-01-03T10:15:30");
      LocalDateTime result = date.withDayOfYear(43);
      System.out.println(result);  
   }
}

Let us compile and run the above program, this will produce the following result −

2017-02-12T10:15:30