Duration ofNanos(long) method in Java with Examples

The ofNanos(long) method of Duration Class in java.time package is used to get a duration in a 1 nanoSecond format.

Syntax:

public static Duration ofNanos(long nanoSeconds)

Parameters: This method accepts a parameter nanoSeconds which is the number of nanoSeconds. It can be positive or negative.

Return Value: This method returns a Duration representing the time in 1 nanoSecond format.

Exception: This method throws ArithmeticException if the input nanoSeconds exceeds the capacity of Duration.

Below examples illustrate the Duration.ofNanos() method:

Example 1:

// Java code to illustrate ofNanos() method

import java.time.Duration;

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

        // input number of Nanos
        long noOfNanos = 1000000;

        // Duration using ofNanos() method
        Duration duration
            = Duration.ofNanos(noOfNanos);

        System.out.println(duration.getSeconds());
    }
}

Output:

0

Example 2:

// Java code to illustrate ofNanos() method

import java.time.Duration;

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

        // input number of Nanos
        long noOfNanos = -1000000;

        // Duration using ofNanos() method
        Duration duration
            = Duration.ofNanos(noOfNanos);

        System.out.println(duration.getSeconds());
    }
}

Output:

-1

Reference: https://docs.oracle.com/javase/9/docs/api/java/time/Duration.html#ofNanos-long-