question: private StringBuffer format ( BigDecimal number , StringBuffer result , FieldDelegate delegate ) { if ( multiplier != 1 ) { number = number . multiply ( getBigDecimalMultiplier ( ) ) ; } boolean isNegative = number . signum ( ) == - 1 ; if ( isNegative ) { number = number . negate ( ) ; } synchronized ( digitList ) { int maxIntDigits = getMaximumIntegerDigits ( ) ; int minIntDigits = getMinimumIntegerDigits ( ) ; int maxFraDigits = getMaximumFractionDigits ( ) ; int minFraDigits = getMinimumFractionDigits ( ) ; int maximumDigits = maxIntDigits + maxFraDigits ; digitList . set ( isNegative , number , useExponentialNotation ? ( ( maximumDigits < 0 ) ? Integer . MAX_VALUE : maximumDigits ) : maxFraDigits , ! useExponentialNotation ) ; return subformat ( result , delegate , isNegative , false , maxIntDigits , minIntDigits , maxFraDigits , minFraDigits ) ; } }
target:  Formats a BigDecimal to produce a string.