String formatDateTimeForFileName(long unixTime){
  final Date date=new Date(unixTime);
  final SimpleDateFormat format=filenameDateAndTimeFormat.get();
  return format.format(date);
}

String formatDateTimeForFileName ( long unixTime ) { final Date date = new Date ( unixTime ) ; final SimpleDateFormat format = filenameDateAndTimeFormat . get ( ) ; return format . format ( date ) ; }
formats a timestamp into a datetime for file names .
