new ReadJSONFeedTask().execute(
       //"http://extjs.org.cn/extjs/examples/grid/survey.html"
       "https://maps.googleapis.com/maps/api/elevation/json?locations=39.7391536,-104.9847034&key=myDEBUGkeygoeshere..."
  );

  private class ReadJSONFeedTask extends AsyncTask<String, Void, String> {    //-- Line 113
     protected String doInBackground(String... urls) {
        return readJSONFeed(urls[0]);
     }

     protected void onPostExecute(String result) {
        Log.i("JSON","Result: " + result);
        try {
            JSONArray jsonArray = new JSONArray(result);                     //-- Line 121
            Log.i("JSON","Number of objects in feed: " + jsonArray.length());
            //--- Print out the content of the json feed---
            for (int i = 1; i < jsonArray.length(); i ++) {
                JSONObject jsonObject = jsonArray.getJSONObject(i);
                Toast.makeText(getBaseContext(), jsonObject.getString("elevation"),Toast.LENGTH_SHORT).show();
            }
        } catch (Exception e) {
            e.printStackTrace();
            Log.i("JSON","Error");
        }
     }
  }