I got a code from [Android Hive](http://www.androidhive.info/2012/01/android-json-parsing-tutorial/) to parse JSON data from url. Then I am trying to implement the same code on [Rotten Tomatoes Upcoming Movies Api](http://api.rottentomatoes.com/api/public/v1.0/lists/movies/upcoming.json?apikey=yvvgsv722gy2zkey3ebkda5t). I have implemented the same code with almost modifying all the xml files according to my needs. But the problem is when I am trying to run the code, its showing NetworkOnMainThread Exception.

This is my code.

```
public class Upcoming extends ListActivity
{
    String url = "http://api.rottentomatoes.com/api/public/v1.0/lists/movies/upcoming.json?apikey=yvvgsv722gy2zkey3ebkda5t";

    final String TAG_MOVIES = "movies";
    final String TAG_ID = "id";
    final String TAG_TITLE = "title";
    final String TAG_YEAR = "year";
    final String TAG_MPAA_RATING = "mpaa_rating";
    final String TAG_RUNTIME = "runtime";
    final String TAG_RELEASE_DATES = "release_dates";
    final String TAG_RATINGS = "ratings";
    final String TAG_CRITIC_RATING = "critics_ratings";
    final String TAG_AUDIENCE_RATING = "audience_ratings";
    final String TAG_SYNOPSIS = "synopsis";
    final String TAG_POSTERS = "posters";

    JSONArray upcomings = null;

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_upcoming_list);

        ArrayList<HashMap<String, String>> UpcomingList = new ArrayList<HashMap<String, String>>();

     // Creating JSON Parser instance
        JSONParser jParser = new JSONParser();

        // getting JSON string from URL
        JSONObject json = jParser.getJSONFromUrl(url);

        try {
            // Getting Array of Contacts
            upcomings = json.getJSONArray(TAG_MOVIES);

            // looping through All Contacts
            for(int i = 0; i < upcomings.length(); i++){
                JSONObject c = upcomings.getJSONObject(i);

                // Storing each json item in variable
                String id = c.getString(TAG_ID);
                String title = c.getString(TAG_TITLE);
                String year = c.getString(TAG_YEAR);
                String mpaa_rating = c.getString(TAG_MPAA_RATING);
                String runtime = c.getString(TAG_RUNTIME);

                JSONObject release_dates = c.getJSONObject(TAG_RELEASE_DATES);
                JSONObject ratings = c.getJSONObject(TAG_RATINGS);
                String critic_rating = c.getString(TAG_CRITIC_RATING);
                String audience_rating = c.getString(TAG_AUDIENCE_RATING);
                String synopsis = c.getString(TAG_SYNOPSIS);
                JSONObject posters = c.getJSONObject(TAG_POSTERS);

                HashMap<String, String> map = new HashMap<String, String>();

                map.put(TAG_TITLE, title);
                map.put(TAG_YEAR, year);
                map.put(TAG_CRITIC_RATING, critic_rating);
                map.put(TAG_AUDIENCE_RATING, audience_rating);

                UpcomingList.add(map);

            }
        } catch (JSONException e) {
            e.printStackTrace();
        }

        ListAdapter adapter = new SimpleAdapter(this, UpcomingList,
                R.layout.activity_upcoming,
                new String[] { TAG_TITLE, TAG_YEAR, TAG_CRITIC_RATING, TAG_AUDIENCE_RATING }, new int[] 
                        {
                        R.id.title, R.id.year, R.id.critic_rating, R.id.audience_rating });

        setListAdapter(adapter);

        // selecting single ListView item
        ListView lv = getListView();

        // Launching new screen on Selecting Single ListItem
        lv.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> parent, View view,
                    int position, long id) {
                // getting values from selected ListItem
                String name = ((TextView) view.findViewById(R.id.title)).getText().toString();
                String cost = ((TextView) view.findViewById(R.id.year)).getText().toString();
                String critic_rating = ((TextView) view.findViewById(R.id.critic_rating)).getText().toString();
                String audience_rating = ((TextView) view.findViewById(R.id.audience_rating)).getText().toString();

                // Starting new intent
                Intent in = new Intent(getApplicationContext(), Upcoming.class);
                in.putExtra(TAG_TITLE, name);
                in.putExtra(TAG_YEAR, cost);
                in.putExtra(TAG_CRITIC_RATING, critic_rating);
                in.putExtra(TAG_AUDIENCE_RATING, audience_rating);
                startActivity(in);
            }
        });
    }
}

```