gets the list un answer question . concode_field_sep QuestionHistoryService service concode_field_sep void deleteHistory concode_elem_sep String getAnswerByQuestionId concode_elem_sep List<QuestionHistory> getListRecentQuestionHistory concode_elem_sep String getUserEmailById concode_elem_sep String getQuestionByQuestionId concode_elem_sep void addAnswer
List < UnAnsweredQnA > function ( Date arg0 ) { try { return service . getListUnAnswerQuestion ( arg0 ) ; } catch ( URISyntaxException loc0 ) { loc0 . printStackTrace ( ) ; } return null ; }