Parse Nested JSON Data?

Issue

I am able to parse Json object but not able to parse nested JSON object.I am able to parse upto "base64" (below JSON DATA)but not able to parse then.How can the object within object can be parsed?

JSON Data

{

    "StdID":1,
    "NAME":"Kirsten Green",
    "PHONENO":"095-517-0049",
    "DOB":"2009-12-28T00:00:00",
    "CLASS":9,
    "GENDER":"M",
    "ADDRESS":"8254 At Ave",
    "NATIONALITY":"Belgium",
    "ENROLLEDYEAR":"2016-04-21T00:00:00",
    "Photo":null,
    "Cat_ID":5,
    "base64":null,
    "studentDetails":{
        "StdID":1,
        "GUARDIAN_PHONE_NO":"002-283-4824",
        "MOBILE_NO":"1-377-762-8548",
        "First_NAME":"Maile",
        "Last_Name":"Lancaster",
        "Relation":"Father",
        "DOB":"2017-02-22T00:00:00",
        "Education":"Ph.D",
        "Occupation":"Etiam ligula tortor,",
        "Income":"20000-30000",
        "Email":"[email protected]",
        "AddLine1":"Ap #416-4247 Sollicitudin Av.",
        "AddLine2":"Ap #801-7380 Imperdiet Avenue",
        "State":"ME",
        "Country":"Israel"
    },
    "Marks":null,
    "stdCategory":{
        "Cat_ID":5,
        "Category":"Normal"
    }

}

Home class

 public void makeJsonObjectRequest(int stud_id) {
        String URL = Navigation_URL + stud_id;
        Log.d("TAG", "URL:" + URL);
        StringRequest stringRequest = new StringRequest(Request.Method.GET, URL,
                new Response.Listener<String>() {
                    @Override
                    public void onResponse(String response) {
                        try {
                            JSONObject jsonObject = new JSONObject(response);
                            studentInformation = new StudentInformation();

                            studentInformation.StdID = String.valueOf(jsonObject.get("StdID"));
                            studentInformation.Name = jsonObject.getString("NAME");
                            studentInformation.Gender = (String) jsonObject.get("GENDER");
                            studentInformation.Phonenumber = String.valueOf(jsonObject.get("PHONENO"));
                            studentInformation.StudentClass = String.valueOf(jsonObject.get("CLASS"));
                            studentInformation.Enrolled_Year = String.valueOf(jsonObject.get("ENROLLEDYEAR"));
                            studentInformation.Address = String.valueOf(jsonObject.get("ADDRESS"));
                            studentInformation.DOB = String.valueOf(jsonObject.get("DOB"));
                            studentInformation.Nationality = String.valueOf(jsonObject.get("NATIONALITY"));
                            profilename.setText(studentInformation.Name);






                        } catch (JSONException e) {
                            Toast.makeText(getApplicationContext(), "Fetch failed!", Toast.LENGTH_SHORT).show();
                            e.printStackTrace();
                        }

                    }

                },
                new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error) {
                        Toast.makeText(Home.this, error.toString(), Toast.LENGTH_LONG).show();
                    }
                });
        RequestQueue requestQueue = Volley.newRequestQueue(this);
        requestQueue.add(stringRequest);


    }

how can nested json be parsed?

Solution

Try this,

        public void makeJsonObjectRequest(int stud_id) {
        String URL = Navigation_URL + stud_id;
        Log.d("TAG", "URL:" + URL);
        StringRequest stringRequest = new StringRequest(Request.Method.GET, URL,
                new Response.Listener<String>() {
                    @Override
                    public void onResponse(String response) {
                        try {
                            JSONObject jsonObject = new JSONObject(response);
                            studentInformation = new StudentInformation();

                            studentInformation.StdID = String.valueOf(jsonObject.get("StdID"));
                            studentInformation.Name = jsonObject.getString("NAME");
                            studentInformation.Gender = (String) jsonObject.get("GENDER");
                            studentInformation.Phonenumber = String.valueOf(jsonObject.get("PHONENO"));
                            studentInformation.StudentClass = String.valueOf(jsonObject.get("CLASS"));
                            studentInformation.Enrolled_Year = String.valueOf(jsonObject.get("ENROLLEDYEAR"));
                            studentInformation.Address = String.valueOf(jsonObject.get("ADDRESS"));
                            studentInformation.DOB = String.valueOf(jsonObject.get("DOB"));
                            studentInformation.Nationality = String.valueOf(jsonObject.get("NATIONALITY"));
                            profilename.setText(studentInformation.Name);

                            JSONObject studentDetails_obj=jsonObject.getJSONObject("studentDetails");
                            int StdID=studentDetails_obj.getInt("StdID");
                            String GUARDIAN_PHONE_NO=studentDetails_obj.getString("GUARDIAN_PHONE_NO");
                            String MOBILE_NO=studentDetails_obj.getString("MOBILE_NO");
                            String First_NAME=studentDetails_obj.getString("First_NAME");
                            String Last_Name=studentDetails_obj.getString("Last_Name");


                            JSONObject stdCategory_obj=jsonObject.getJSONObject("stdCategory");
                            int Cat_ID=stdCategory_obj.getInt("Cat_ID");
                            String Category=stdCategory_obj.getString("Category");

                        } catch (JSONException e) {
                            Toast.makeText(getApplicationContext(), "Fetch failed!", Toast.LENGTH_SHORT).show();
                            e.printStackTrace();
                        }

                    }

                },
                new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error) {
                        Toast.makeText(Home.this, error.toString(), Toast.LENGTH_LONG).show();
                    }
                });
        RequestQueue requestQueue = Volley.newRequestQueue(this);
        requestQueue.add(stringRequest);
      }

Answered By - Komal12