question: implements the iterable interface for this box . concode_field_sep BallContainer ballContainer concode_elem_sep double max concode_field_sep boolean add concode_elem_sep Iterator<Ball> getBallsFromSmallest concode_elem_sep int compare concode_elem_sep double getVolume concode_elem_sep boolean contains concode_elem_sep int size concode_elem_sep void clear concode_elem_sep boolean remove
target: Iterator < Ball > function ( ) { return ballContainer . iterator ( ) ; }