How to convert java nanoseconds to seconds using the TimeUnit enum? Ask Question

How to convert a value from nanoseconds to seconds?

Here's the code segment:

import java.io.*;
import java.util.concurrent.*; 
..
class Stamper { 
public static void main (String[] args) { 
long start = System.nanoTime(); 
//some try with nested loops 
long end = System.nanoTime(); 
long elapsedTime = end - start;
System.out.println("elapsed: " + elapsedTime + "nano secondsn");
//convert to seconds 
TimeUnit seconds = new TimeUnit(); 
System.out.println("which is " + seconds.toSeconds(elapsedTime) + " seconds"); 
}}

The error is

Stamper.java:16:  enum types may not be instantiated.

What does this mean?