Java Benchmark

    package testexample;

    public class Testexample {

        public static void main(String[] args) {
                        
            long start = System.currentTimeMillis(); // 1s = 1000ms
                        
            for (int i=1; i<1000000; i++);
            
            long end = System.currentTimeMillis();
            long time = end - start;
            
            System.out.println("Miliseconds: " + time); // 1 milisecond
            System.out.println("Seconds: " + microtime(time)); // 0.0010 seconds
        }
        
        public static double microtime(long time) {
            
            long seconds = time / 1000;
            double decimal = (time - (seconds*1000))/1000d;
                // 1000d = 1000.0 equivalent with (double)1000
            
            return decimal + seconds;
        }
    }