Show elapsed time
public class Util {
public static String displayTime(long millis){
long second = (millis / 1000) % 60;
long minute = (millis / (1000 * 60)) % 60;
long hour = (millis / (1000 * 60 * 60)) % 24;
return String.format(Locale.getDefault(),"%02d:%02d:%02d:%d", hour, minute, second, millis);
}
public static String displayTime(Date startDate){
long diffDate = (new Date()).getTime() - startDate.getTime();
return displayTime(diffDate);
}
}