How to measure elapsed time

Question

I have a 10 and 20 question game. I need to count how much time is passed when a user finishes the game.

Timer T=new Timer();
T.scheduleAtFixedRate(new Timer         


        

Answer 1

When the game starts:

long tStart = System.currentTimeMillis();

When the game ends:

long tEnd = System.currentTimeMillis();
long tDelta = tEnd - tStart;
double elapsedSeconds = tDelta / 1000.0;