Question using run() to advance simulation clock

Question

Hey guys! First, I have a class that implements Runnable. I am using the class to store a number of features, including a systemClock which [phone] class has but stores as a default to '0'. What I am trying to achieve is a systemClock that runs till 168 "hours" irrespective of the [phone] battery's charge state, to indicate the running time of the simulation. My question is, how can I manipulate run() to advance systemClock by 1 (hour) for every half second (real-time) in the simulation? Please check my code below (and thank you!):
public void run()
            while(true)
                      // sleep delay of 500 milliseconds
                    try {runner.sleep(500);}
                    catch (Exception e) {}
                    while(systemClock < 168)
                         systemClock++;
     }

Answer 1

NPP83 wrote:
Sorry. The Phone implements Runnable and has a variable systemClock which stores the number of "hours" in a week. What I am asking is, does run()'s method of sleep (runner.sleep(500)) mean that every 500 miliseconds (or 1/2 second) mean it will execute the enclosed method of increasing systemClock by one (clock++)?Sort of. The main while loop will pause during the Thread.sleep for half a second. Whether it's precisely half a second or not is apparently affected by the OS (some OSes have different granularities;I don't know the details), but it's probably fine for your purposes.
You might want to look at java.util.Timer, which has different methods that try to enforce different rules about the regularity of events. It'll probably be a lot easier to use without your having to reinvent those rules.
This was a problem however:
                    while(systemClock < 168)
                         systemClock++;
                    }What this does is set systemClock to 168 in a really inefficient way. So the run() method as a whole, as you wrote it, would pause a half second, set systemClock to 168 (assuming it was less than that initially), and then do nothing, pausing while it did it. You could replace that entire run method with this:
public void run() {
    systemClock = 168;
}That's probably not what you want.