<s>[INST] gets the current key , which is the key returned by the last call to next . concode_field_sep Iterator iterator concode_elem_sep Map.Entry last concode_elem_sep Map map concode_elem_sep boolean canRemove concode_field_sep Object next concode_elem_sep Object getValue concode_elem_sep Object setValue concode_elem_sep void reset concode_elem_sep boolean hasNext concode_elem_sep String toString concode_elem_sep void remove [/INST] Object function ( ) { if ( last == null ) { throw new IllegalStateException ( "srini_string" ) ; } return last . getKey ( ) ; </s>