Calculating time difference in Milliseconds

Question

I am making a call to a method by passing ipAddress and it will return back the location of ipAddress like Country, City, etc etc. So I was trying to see how much time it is

Answer 1

Try this

long start_time = System.nanoTime();
resp = GeoLocationService.getLocationByIp(ipAddress);
long end_time = System.nanoTime();
double difference = (end_time - start_time) / 1e6;