Benchmark Program

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


     long startTime = System.currentTimeMillis();
     long endTime = startTime + 60000;

     long index = 0;

     while (true) {
         double x =Math.sqrt(index);
         long now = System.currentTimeMillis();
         if (now > endTime) {
             break;
         }
         index++;
     }
        System.out.println(index + " loops in one minute.");

    }
}