Reading a JSON Array in Android

Reading a Json Array in android

A JSON Object starts with a { and ends with a } while a JSON Array starts with a [ and ends with a ].

In your case, change your code to have a JSONObject instead.

JSONObject json = new JSONObject(jsonString);
JSONArray jArray = json.getJSONArray("list");

System.out.println("*****JARRAY*****" + jArray.length());

for(int i=0; i<jArray.length(); i++){
    JSONObject json_data = jArray.getJSONObject(i);

    Log.i("log_tag", "_id" + json_data.getInt("account") +
        ", mall_name" + json_data.getString("name") +
        ", location" + json_data.getString("number") +
        ", telephone" + json_data.getString("url") +
        ",----" + json_data.getString("balance") +
        ",----" + json_data.getString("credit") +
        ",----" + json_data.getString("displayName")
    );
}

Parsing JSON array and object in Android

Your JSON string start with JSONArray.

Here sample code, try it.

    JSONArray mJsonArray = new JSONArray(jsonStr);
    JSONObject mJsonObject = mJsonArray.getJSONObject(0);

    String pmid = mJsonObject.getString("pmid");
    String name = mJsonObject.getString("name");
    String result = mJsonObject.getString("result");

    JSONArray mJsonArrayProperty = mJsonObject.getJSONArray("properties");
    for (int i = 0; i < mJsonArrayProperty.length(); i++) {
        JSONObject mJsonObjectProperty = mJsonArrayProperty.getJSONObject(i);

        String prop_id = mJsonObjectProperty.getString("prop_id");
        String prop_name = mJsonObjectProperty.getString("prop_name");
        String address = mJsonObjectProperty.getString("address");
        String city = mJsonObjectProperty.getString("city");
        String state = mJsonObjectProperty.getString("state");
        String zip = mJsonObjectProperty.getString("zip");
        String lat = mJsonObjectProperty.getString("lat");
        String lon = mJsonObjectProperty.getString("long");
    }

Check Android JSON Parsing Tutorial

How to parse this Json Array in android

You BufferReader is not working as expected in your class JSONfunctions , do some changes in your class and it should looks like

JSONfunctions.java

public class JSONfunctions {

public static JSONArray getJSONfromURL(String url) {
    InputStream is = null;
    String result = "";
    JSONArray jArray = null;

    // Download JSON data from URL
    try {
        HttpClient httpclient = new DefaultHttpClient();
        HttpPost httppost = new HttpPost(url);
        HttpResponse response = httpclient.execute(httppost);
        HttpEntity entity = response.getEntity();
        is = entity.getContent();

    } catch (Exception e) {
        Log.e("log_tag", "Error in http connection " + e.toString());
    }

       StringBuffer sb = new StringBuffer("");
    try {
        URL urls = new URL(url);
        URLConnection urlConnection;
        urlConnection = urls.openConnection();
        InputStream in = urlConnection.getInputStream();
        BufferedReader br=new BufferedReader(new InputStreamReader(in));
         String line = "";
            while ((line = br.readLine()) != null) {
                sb.append(line);
            }
            System.out.println(sb);
            result=sb.toString();
    } catch (IOException e) {}
      catch (Exception e) {}
    try {

        jArray = new JSONArray(result);
    } catch (JSONException e) {
        Log.e("log_tag", "Error parsing data " + e.toString());
    }

    return jArray;
   }
  }

and to avoid Exception check if JSONArray is not null then only it goes to run for loop like this :

 JSONArray ja2 =   JSONfunctions.getJSONfromURL("http://app.ireff.in:9090/IreffWeb/android?  service=airtel&circle=assam");
 if(ja2!=null)
            for (int i = 0; i < ja2.length(); i++) {}

Parse Json Array Inside Multiple Json Array with android

Your JSON String is composed of an array , which contains arrays, which contain objects. so

// parse json to an array
JSONArray array = new JSONArray(jsonString);
// loop through that array and get nested arrays
for (int i = 0; i < array.length(); i++) {
     JSONArray subArray = array.getJSONArray(i);
     // loop trhough those nested arrays to retrieve the objects
     for (int j = 0; j < subArray.length(); j++) {
           JSONObject obj = subArray.getJsonObject(j);
           // parse the object properties...

     }
}

Parsing JSON array of objects in android

First be sure you have retrieved JSON String,

Then You can easily access the properties inside them like

try {
     JSONArray jsonArray = new JSONArray(json);
     JSONObject obj = jsonArray.getJSONObject(0); //0 for just retrieving first object you can loop it
     String myVehicleID = obj.getString("vehicleId"); //To retrieve vehicleId
     //Similarly do it for others as well
    } catch (JSONException e) {
      e.printStackTrace();
    }

how to parse JSONArray in android

If you're after the 'name', why does your code snippet look like an attempt to get the 'characters'?

Anyways, this is no different from any other list- or array-like operation: you just need to iterate over the dataset and grab the information you're interested in. Retrieving all the names should look somewhat like this:

List<String> allNames = new ArrayList<String>();

JSONArray cast = jsonResponse.getJSONArray("abridged_cast");
for (int i=0; i<cast.length(); i++) {
    JSONObject actor = cast.getJSONObject(i);
    String name = actor.getString("name");
    allNames.add(name);
}

(typed straight into the browser, so not tested).

Android Studio: How to parse a JSON Object from Inside of a JSON Array?

By getting first node in array you have obtained address node so no need to run loop there, address object is not an array you can get values directly. Try something like this:

        JSONArray array = object.getJSONArray("pollingLocations");
        for (int i = 0; i < array.length(); i++) {
            JSONObject jsonObject = array.getJSONObject(i);
           String locationName = jsonObject.getJSONObject("address")
                   .getString("locationName");
           Log.d("locationName", locationName);
            JSONArray sourcesArray = jsonObject.getJSONArray("sources");

          // run loop to get values from this array
          for (int j = 0; j < sourcesArray.length(); j++){
                JSONObject source = sourcesArray.getJSONObject(j);
                String name = source.getString("name");
            }
        }

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