android - after parsing json null value is returned even though it is not null -

{   "page": 1,   "results": [     {       "poster_path": "/liv1qinfqz4dlp5u4lq6haiskoz.jpg",       "adult": false,       "overview": "under direction of ruthless instructor, talented young drummer begins pursue perfection @ cost, humanity.",       "release_date": "2014-10-10",       "genre_ids": [         18,         10402       ],       "id": 244786,       "original_title": "whiplash",       "original_language": "en",       "title": "whiplash",       "backdrop_path": "/6bbz6xyvgfjhqwbplnuh1lsj1ky.jpg",       "popularity": 7.361171,       "vote_count": 1949,       "video": false,       "vote_average": 8.32     }   ] } 

this json response when parse value of id null below networking , json parsing code please help..

public class movietask extends asynctask<string, void, list<movieobject>> {     private string tag;     private static final string base_string = "http://api.themoviedb.org/3/movie/";     private static final string api_key = "388e5684ea2f3bb8de279874cb6990a5";     private static final string movie_id="id";     private static final string movie_overview="overview";     private static final string movie_title="original_title";     private static final string movie_vote="vote_average";     private static final string movie_posterpath="poster_path";     private static final string movie_release_date="release_date";     private static final string movie_backdrop_path="backdrop_path";      // parse json data arraylist of movieobjects      private list<movieobject> getparseddata(string forecastjsonstr)             throws jsonexception {         final string start_of_json = "results";         jsonobject startlist = new jsonobject(forecastjsonstr);         jsonarray startarray = startlist.getjsonarray(start_of_json);         int noofobjects = startarray.length();         list<movieobject> objectarray = new arraylist<>();         (int = 0; < noofobjects; i++) {             jsonobject object = startarray.getjsonobject(i);             movieobject finalobjectarray = new movieobject();             finalobjectarray.setmovieid(object.getstring(movie_id));             finalobjectarray.setoverview(object.getstring(movie_overview));             finalobjectarray.settitle(object.getstring(movie_title));             finalobjectarray.setmovierating(object.getstring(movie_vote));             finalobjectarray.setposterpath(object.getstring(movie_posterpath));             finalobjectarray.setreleasedate(object.getstring(movie_release_date));             finalobjectarray.setbackdroppath(object.getstring(movie_backdrop_path)+"/10");             objectarray.add(finalobjectarray);         }          return objectarray;      }        protected list<movieobject> doinbackground(string... params) {         httpurlconnection urlconnection = null;         bufferedreader reader = null;         list<movieobject> finalobjectarray = new arraylist<>();          // contain raw json response string.         string forecastjsonstr = null;          try {               url url = new url(base_string + params[0] + "?api_key="+api_key);               urlconnection = (httpurlconnection) url.openconnection();             urlconnection.setrequestmethod("get");             urlconnection.connect();              // read input stream string             inputstream inputstream = urlconnection.getinputstream();             stringbuffer buffer = new stringbuffer();             if (inputstream == null) {                 // nothing do.              }             reader = new bufferedreader(new inputstreamreader(inputstream));              string line;             while ((line = reader.readline()) != null) {                 buffer.append(line + "\n");             }              if (buffer.length() == 0) {                 return null;              }             forecastjsonstr = buffer.tostring();             log.i("hey", "hello" + forecastjsonstr);         } catch (ioexception e) {             log.e("placeholderfragment", "error ", e);         } {             if (urlconnection != null) {                 urlconnection.disconnect();             }             if (reader != null) {                 try {                     reader.close();                 } catch (final ioexception e) {                     log.e("placeholderfragment", "error closing stream", e);                 }             }         }          try {             finalobjectarray = getparseddata(forecastjsonstr);         } catch (jsonexception e) {             log.e("json exception", e.getmessage(), e);             e.printstacktrace();         }          return finalobjectarray; //final movieobject array     }       //onpostexecute method of asynctask      protected void onpostexecute(list<movieobject> results) {     } } 

the id null because "id" not string.

let's check json.

{      "page":1,    "results":[         {            "poster_path":"/liv1qinfqz4dlp5u4lq6haiskoz.jpg",          "adult":false,          "overview":"under direction of ruthless instructor, talented young drummer begins pursue perfection @ cost, humanity.",          "release_date":"2014-10-10",          "genre_ids":[               18,             10402          ],          "id":244786,                            <------- without "" = integer          "original_title":"whiplash",            <-------- "" = string          "original_language":"en",          "title":"whiplash",          "backdrop_path":"/6bbz6xyvgfjhqwbplnuh1lsj1ky.jpg",          "popularity":7.361171,          "vote_count":1949,          "video":false,          "vote_average":8.32       }    ] } 

so, value use getint()

finalobjectarray.setmovieid(object.getint(movie_id).tostring());