decode the json file in java : i am trying to decode JSON file in json format using UTF-8,

But its printing no value


JSONParser jsonParser = new JSONParser();
      FileReader file = new FileReader("C:/Users/aab6cob/Desktop/jsonFile/170902_K0_RUCd_ML_F4974.txt.insights-json");
      BufferedReader filBufferedReader = new BufferedReader(file);
      
      String st;
      while((st=filBufferedReader.readLine())!=null){
        byte[] tempByte = st.getBytes("UTF-8"); 
        String tempString = new String(tempByte);
        System.out.println(tempString);
      }