DayOfWeek of() method in Java with Examples

DayOfWeek valueOf() method in Java with Examples

Last Updated : 20 Mar, 2019

The valueOf() method of java.time.DayOfWeek is an in-built function in Java which takes a string and returns an instance of DayOfWeek corresponding to the string. The string must match exactly to the identifier used to declare a day-of-week constant in this type. Extraneous white space characters are not permitted. Method Declaration:

 public static DayOfWeek valueOf(String name)

Syntax:

 DayOfWeek dayOfWeekObject = DayOfWeek.valueOf(String name)

Parameters: This method takes name as parameter where:

name - is the string which is the name of the day-of-week.

dayOfWeekObject - is an instance of DayOfWeek.

Return Value: The function returns an instance of DayOfWeek corresponding to the name string Below programs illustrate the above method: Program 1:

Java

// Java Program Demonstrate valueOf()
// method of DayOfWeek

import java.time.*;

class DayOfWeekExample {
    public static void main(String[] args)
    {
        // Initializing a DayOfWeek instance
        DayOfWeek dayOfWeek
            = DayOfWeek.valueOf("MONDAY");

        // Printing the day-of-week
        System.out.println(dayOfWeek.name());
    }
}

Output:

MONDAY

Program 2:

Java

// Java Program Demonstrate valueOf()
// method of DayOfWeek

import java.time.*;

class DayOfWeekExample {
    public static void main(String[] args)
    {
        // Initializing a DayOfWeek instance
        DayOfWeek dayOfWeek
            = DayOfWeek.valueOf("SATURDAY");

        // Printing the day-of-week
        System.out.println(dayOfWeek.name());
    }
}

Output:

SATURDAY

Reference: https://docs.oracle.com/javase/8/docs/api/java/time/DayOfWeek.html#valueOf-java.lang.String-

DayOfWeek of() method in Java with Examples

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