WeekFields getFirstDayOfWeek() method in Java with Examples

The getFirstDayOfWeek() method of WeekFields class is used to return the first day-of-week as a DayOfWeek enum.For example, the US uses Sunday, while France uses Monday.

Syntax:

public DayOfWeek getFirstDayOfWeek()

Parameters: This method accepts nothing.



Return value: This method returns the first day-of-week, not null.

Below programs illustrate the WeekFields.getFirstDayOfWeek() method:
Program 1:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Java program to demonstrate
// WeekFields.getFirstDayOfWeek() method
  
import java.time.DayOfWeek;
import java.time.temporal.WeekFields;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // create WeekFields
        WeekFields weekFields
            = WeekFields.of(DayOfWeek.MONDAY, 1);
  
        // apply getFirstDayOfWeek()
        DayOfWeek firstDay
            = weekFields.getFirstDayOfWeek();
  
        // print results
        System.out.println("First Day:"
                           + firstDay);
    }
}

chevron_right


Output:

First Day:MONDAY

Program 2:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Java program to demonstrate
// WeekFields.getFirstDayOfWeek() method
  
import java.time.DayOfWeek;
import java.time.temporal.WeekFields;
import java.util.Locale;
  
public class GFG {
    public static void main(String[] args)
    {
  
        Locale locale = new Locale("EN", "US");
  
        // create WeekFields
        WeekFields weekFields
            = WeekFields.of(locale);
  
        // apply getFirstDayOfWeek()
        DayOfWeek firstDay
            = weekFields.getFirstDayOfWeek();
  
        // print results
        System.out.println("First Day:"
                           + firstDay);
    }
}

chevron_right


Output:

First Day:SUNDAY

References: https://docs.oracle.com/javase/10/docs/api/java/time/temporal/WeekFields.html#getFirstDayOfWeek()

java-img




My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.