boolean function ( ) { return ( currSize == 0 ) ? true : false ; }
checks whether this set equals the empty set . concode_field_sep int currSize concode_elem_sep SetElement top concode_elem_sep SetElement root concode_elem_sep int element concode_elem_sep SetElement nextElement concode_field_sep void add concode_elem_sep int firstElement concode_elem_sep int[] getArray concode_elem_sep IntegerSet union concode_elem_sep void remove concode_elem_sep int getCardinality concode_elem_sep IntegerSet removeSet concode_elem_sep boolean contains concode_elem_sep void setNextElement concode_elem_sep int getElement concode_elem_sep IntegerSet intersection concode_elem_sep boolean equals concode_elem_sep String toString concode_elem_sep boolean subset concode_elem_sep SetElement nextElement