Question

How to convert nanoseconds to milliseconds in Java

Answer 1

import java.util.concurrent.TimeUnit;

public class MyClass {
    public static void main(String args[]) {
        long durationInMilliseconds = TimeUnit.MILLISECONDS.convert(1000000, TimeUnit.NANOSECONDS);
	    System.out.println(durationInMilliseconds);
    }
}

/*
run:
  
1
 
*/

 

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Answer 2

import java.util.concurrent.TimeUnit;

public class MyClass {
    public static void main(String args[]) {
        long durationInMilliseconds = TimeUnit.NANOSECONDS.toMillis(1000000);
	    System.out.println(durationInMilliseconds);
    }
}

/*
run:
  
1
 
*/

 

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Answer 3

import java.util.concurrent.TimeUnit;

public class MyClass {
    public static void main(String args[]) {
        long nanoseconds = 2000000;
        long durationInMilliseconds = nanoseconds / 1000000;
        System.out.println(durationInMilliseconds);
    }
}

/*
run:
  
2
 
*/

 

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