Question

How to convert milliseconds to nanoseconds in Java

Answer 1

import java.util.concurrent.TimeUnit;

public class MyClass {
    public static void main(String args[]) {
        long durationInNanoseconds = TimeUnit.NANOSECONDS.convert(3, TimeUnit.MILLISECONDS);
	    System.out.println(durationInNanoseconds);
    }
}

/*
run:
  
3000000
 
*/

 

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Answer 2

import java.util.concurrent.TimeUnit;

public class MyClass {
    public static void main(String args[]) {
        long milliseconds = 3;
        long durationInNanoseconds = milliseconds * 1000000;
        System.out.println(durationInNanoseconds);
    }
}

/*
run:
  
3000000
 
*/

 

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