question: public static String formatDuration ( long duration ) { StringBuilder result = new StringBuilder ( ) ; long remainingDuration = duration ; if ( remainingDuration == 0 ) { result . append ( "0 Milliseconds" ) ; } else { remainingDuration = processDuration ( remainingDuration , MILLIS_PER_DAY , "Day" , result , false ) ; remainingDuration = processDuration ( remainingDuration , MILLIS_PER_HOUR , "Hour" , result , false ) ; remainingDuration = processDuration ( remainingDuration , MILLIS_PER_MINUTE , "Minute" , result , false ) ; remainingDuration = processDuration ( remainingDuration , MILLIS_PER_SECOND , "Second" , result , false ) ; long milliSeconds = remainingDuration ; if ( milliSeconds > 0 ) { processDuration ( remainingDuration , 1 , "Millisecond" , result , true ) ; } } return result . toString ( ) ; }
target:  Formats a "total milliseconds" duration.