Calendar getFirstDayOfWeek() Method in Java with Examples

The getFirstDayOfWeek() method in Calendar class is used to return the first day of the week of this Calendar.
Syntax:

public int getFirstDayOfWeek()

Parameters: The method does not take any parameters.
Return Value: The method returns the first day of the week.
Below programs illustrate the working of getFirstDayOfWeek() Method of Calendar class: 
Example 1:

Java

// Java code to illustrate
// getFirstDayOfWeek() method

import java.util.*;

public class Calendar_Demo {
    public static void main(String[] args)
    {

        // Creating calendar object
        Calendar calndr = Calendar.getInstance();

        // Displaying the first
        // day of the week
        System.out.println("The First day"
                           + " is: " + calndr.getFirstDayOfWeek());

        int the_day = calndr.getFirstDayOfWeek();
        switch (the_day) {
        case 1:
            System.out.println("Sunday");
            break;
        case 2:
            System.out.println("Monday");
            break;
        case 3:
            System.out.println("Tuesday");
            break;
        case 4:
            System.out.println("Wednesday");
            break;
        case 5:
            System.out.println("Thursday");
            break;
        case 6:
            System.out.println("Friday");
            break;
        case 7:
            System.out.println("Saturday");
            break;
        }
    }
}

Output:

The First day is: 1
Sunday

Reference: https://docs.oracle.com/javase/7/docs/api/java/util/Calendar.html#getFirstDayOfWeek()