how to calculate the elapsed time of a particular event in my application?

Question

I need to show in my software the amount of days, hours and minutes that a particular event occurred.

I get a string with the value of the last event and calculating the amount of time that the event occurred.

..

lastEvent: String = lastEventOcorr (); "16.07.2013 19:20:06"

..

example:

Last event occurred: 3 Days 6 Hours 45 Minutes and 42 Seconds

or

Last event occurred: 5 Minutes 30 Seconds

..

There is a practical way to do this calculation?

I really appreciate all the help.

Thank you very much

Answer 1

Here is an example on how to count days, you can add hours and mins to this.

            long MILLIS_IN_DAY = 1000 * 60 * 60 * 24;

        String lastEvent =  "13.07.2013 10:20:06";
        SimpleDateFormat sdf = new SimpleDateFormat("dd.MM.yyyy hh:mm:ss");
        Date lastEventDate = sdf.parse(lastEvent);
        Date currentDate = new Date();

        long timeElapsed = currentDate.getTime() - lastEventDate.getTime();
        long diffInDays = timeElapsed / MILLIS_IN_DAY; 

        System.out.println(diffInDays);