question: remove the element in the hash set . returns true if the set contained the element , otherwise false . concode_field_sep Object PRESENT concode_elem_sep HashMap<E,Object> map concode_field_sep boolean contains concode_elem_sep int size concode_elem_sep boolean isEmpty concode_elem_sep void clear concode_elem_sep void put
target: boolean function ( E arg0 ) { return map . remove ( arg0 ) == PRESENT ; }