public static boolean withinAWeek(long milli){
  long diff=System.currentTimeMillis() - toMilliseconds(milli);
  return diff < MILLI_SECONDS_IN_WEEK;
}

public static boolean withinAWeek ( long milli ) { long diff = System . currentTimeMillis ( ) - toMilliseconds ( milli ) ; return diff < MILLI_SECONDS_IN_WEEK ; }
checks to see if time is within this week . performs second - millisecond conversion
