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Java Duration Class | ofNanos() Method with Example

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

Duration Class ofNanos() method

• ofNanos() method is available in java.time package.
• ofNanos() method is used to represent the given nanoseconds value in this Duration.
• ofNanos() 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.
• ofNanos() method may throw an exception at the time of representing nanoseconds.
  ArithmeticException: This exception may throw when the given nanoseconds value exceeds the length of this Duration.

Syntax:

    public static Duration ofNanos(long nanos_val);

Parameter(s):

• long nanos_val – represents the number of nanoseconds in value.

Return value:

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

Example:

// Java program to demonstrate the example 
// of ofNanos(long nanos_val) method of Duration

import java.time.*;

public class OfNanosOfDuration {
    public static void main(String args[]) {
        long nanos_val = 59990000;

        // returns the Duration that holds 
        // the value of the given argument i.e. 
        // here we are representing
        // nanoseconds in standard seconds in 
        // this Duration du 
        Duration du = Duration.ofNanos(nanos_val);

        // Display du
        System.out.println("Duration.ofNanos(nanos_val): " + du);
    }
}

Output

Duration.ofNanos(nanos_val): PT0.05999S