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Java Duration Class | ofDays() Method with Example

Duration Class ofDays() method: Here, we are going to learn about the ofDays() method of Duration Class with its syntax and example.
Submitted by Preeti Jain, on May 16, 2020

Duration Class ofDays() method

• ofDays() method is available in java.time package.
• ofDays() method is used to represent the given number of days in this Duration.
• ofDays() method is a static method, it is accessible with the class name and if we try to access the method with the class object then we will not get an error.
• ofDays() method may throw an exception at the time of representing days.
  ArithmeticException: This exception may throw when the given day's value exceeds the length of this Duration.

Syntax:

    public static Duration ofDays(long day_val);

Parameter(s):

• long day_val – represents the number of days in value.

Return value:

The return type of this method is Duration, it returns the Duration that holds the value of the given days.

Example:

// Java program to demonstrate the example 
// of ofDays(long day_val) method 
// of Duration

import java.time.*;
import java.time.temporal.*;

public class OfDaysOfDuration {
    public static void main(String args[]) {
        long days_val = 3;

        // returns the Duration that holds 
        // the value of the given argument i.e. 
        // here we are representing 3 days (72H) 
        // in this Duration du1
        Duration du1 = Duration.ofDays(days_val);

        // Display du1
        System.out.println("Duration.ofDays(3): " + du1);
    }
}

Output

Duration.ofDays(3): PT72H