question: public void roll ( int field , int value ) { boolean increment = value >= 0 ; int count = increment ? value : - value ; for ( int i = 0 ; i < count ; i ++ ) { roll ( field , increment ) ; } }
target:  Adds the given amount to the given field and wraps the value of the field when it goes beyond the maximum or minimum value for the current date. Other fields will be adjusted as required to maintain a consistent date.