Error while parsing JSON Object in Java Android

Question

In my Android app, I am fetching the details of Points table of a tournament to convert the output to a string from JSON object to Java

JSON object is shown below:

{
  "group": {
    "Teams": [
      {
        "name": "Team 1",
        "p": "10",
        "w": "9",
        "l": "1",
        "points": "18"
      },
      {
        "name": "Team 2",
        "p": "10",
        "w": "9",
        "l": "1",
        "points": "18"
      },
      {
        "name": "Team 3",
        "p": "10",
        "w": "9",
        "l": "1",
        "points": "18"
      },
      {
        "name": "Team 4",
        "p": "10",
        "w": "6",
        "l": "4",
        "points": "12"
      },
      {
        "name": "Team 5",
        "p": "10",
        "w": "6",
        "l": "4",
        "points": "12"
      },
      {
        "name": "Team 6",
        "p": "10",
        "w": "6",
        "l": "4",
        "points": "12"
      },
      {
        "name": "Team 7",
        "p": "10",
        "w": "5",
        "l": "5",
        "points": "11"
      },
      {
        "name": "Team 8",
        "p": "10",
        "w": "5",
        "l": "5",
        "points": "11"
      }
    ]
  }
}

Android Java Code is below:

JSONObject match = new JSONObject(response);

if (match.has("group")) {
    JSONObject group = match.getJSONObject("group");

    if (match.has("Teams")) {
        JSONObject teams = group.getJSONObject("Teams");

        if (teams.has("0")) {
            JSONObject teams_object = teams.getJSONObject("0");
            String team_name = teams_object.getString("name");
            String matches_played = teams_object.getString("p");
            String matches_won = teams_object.getString("w");
            String matches_lost = teams_object.getString("l");
            String points = teams_object.getString("points");
        }
    }
}

But I am getting the error where I print the error message through getMessage() method. Here is the error below:

Error: Value ["name","p","w","l","points"] at header of type org.json.JSONArray cannot be converted to JSONObject

Can anyone please help like where I am going wrong or what is the fix ? Thanks in advance

pojo.sodhanalibrary.com/Convert

primo
– primo

2019-05-09 05:39:41 +00:00
Commented May 9, 2019 at 5:39 — primo
– primo, Commented May 9, 2019 at 5:39
use POJO classes. Parsing will be much more easy

primo
– primo

2019-05-09 05:40:01 +00:00
Commented May 9, 2019 at 5:40 — primo
– primo, Commented May 9, 2019 at 5:40
check my answer @SaAsh

Brahma Datta
– Brahma Datta

2019-05-09 05:43:40 +00:00
Commented May 9, 2019 at 5:43 — Brahma Datta
– Brahma Datta, Commented May 9, 2019 at 5:43
Checking @g.brahmaDatta

SaAsh Techs
– SaAsh Techs

2019-05-09 05:47:02 +00:00
Commented May 9, 2019 at 5:47 — SaAsh Techs
– SaAsh Techs, Commented May 9, 2019 at 5:47
Team should be Json array. not a Json Object.

Sajith
– Sajith

2019-05-09 05:48:10 +00:00
Commented May 9, 2019 at 5:48 — Sajith
– Sajith, Commented May 9, 2019 at 5:48

Rajnish suryavanshi · Accepted Answer · 2019-05-09 10:27:07Z

1

In your Json Teams holds the Array of Object and you are parsing wrong. Try this

 JSONObject jsonObject = new JSONObject(response);
 JSONObject groups = jsonObject.getJSONObject("group");
 JSONArray teams = groups.getJSONArray("Teams");
 for(int i=0;i<teams.length();i++){
        JSONObject obj = teams.getJSONObject(i);
        name.append(obj.getString("name")+"\n");
 }

edited May 9, 2019 at 10:27

answered May 9, 2019 at 5:47

Rajnish suryavanshi

3,4942 gold badges20 silver badges24 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

SaAsh Techs Over a year ago

Thank you, I am getting the error 'Cannot resolve method getJSONArray(java.lang.String)' @Rajnish suryavanshi

Rajnish suryavanshi Over a year ago

what string name you are passing?

Rajnish suryavanshi Over a year ago

check my updated code. I checked and I am getting output as well.

Gunaseelan · Accepted Answer · 2019-05-09 12:39:33Z

There is 4 mistakes in your code,

1.You have to check whether group has teams instead match has teams.

2.You have to get team as JSONArray instead of JSONObject because it is array.

3.You have to check the size of team, instead of find the object with key 0, there is no object with name 0 in your group,

4.You have to get the object based on index instead of key(ie., 0)

Please check the working code, this is tested

try {
    JSONObject  match = new JSONObject(response);
    if (match.has("group")) {
        JSONObject group = match.getJSONObject("group");

        if (group.has("Teams")) {
            JSONArray teams = group.getJSONArray("Teams");

            if (teams.length() > 0) {
                JSONObject teams_object =(JSONObject) teams.get(0);
                String team_name = teams_object.getString("name");
                String matches_played = teams_object.getString("p");
                String matches_won = teams_object.getString("w");
                String matches_lost = teams_object.getString("l");
                String points = teams_object.getString("points");
                Log.v(TAG, team_name);
            }
        }
    }
} catch (JSONException e) {
    e.printStackTrace();
}

Kanwarpreet Singh · Accepted Answer · 2019-05-09 06:07:29Z

0

try {
    JSONObject jsonObject = new JSONObject(response.body().string());
    JSONObject subObject = jsonObject.getJSONObject("group") ;
    JSONArray jsonArray = subObject.getJSONArray("Teams");
    for (int i=0; i<jsonArray.length(); i++){
        JSONObject object = jsonArray.getJSONObject(i);
        String name = jsonObject.getString("name");
        String p= jsonObject.getString("p");
        String w= jsonObject.getString("w");
        String l= jsonObject.getString("l");
        String points = jsonObject.getString("points");
    }
} catch (Exception e) {
     e.printStackTrace();
}

answered May 9, 2019 at 6:07

Kanwarpreet Singh

2,1261 gold badge16 silver badges32 bronze badges

1 Comment

Kanwarpreet Singh Over a year ago

@SaAshTechs Share your logcat, then I will be able to help you out and full activity code.

Basi · Accepted Answer · 2019-05-09 06:09:46Z

0

if (match.has("group")) {
    JSONObject group = match.getJSONObject("group");

    if (match.has("Teams")) {
        JSONArray teams = group.getJSONArray("Teams");

     // for only 0th element use below code else looping

                JSONObject teams_object = (JSONObject) teams.get(0);
                String team_name = teams_object.getString("name");
                String matches_played = teams_object.getString("p");
                String matches_won = teams_object.getString("w");
                String matches_lost = teams_object.getString("l");
                String points = teams_object.getString("points");

    }
}

answered May 9, 2019 at 6:09

Basi

3,15825 silver badges30 bronze badges

1 Comment

Basi Over a year ago

@SaAshTechs better you go for gson parsing

Niranj Patel · Accepted Answer · 2019-05-09 06:16:17Z

0

Error: Value ["name","p","w","l","points"] at header of type org.json.JSONArray cannot be converted to JSONObject

You are getting the error because there is an Array of Teams and you are trying parse with JSONObject

Please check below code snippet. It will work.

try {
        JSONObject match = new JSONObject("your_response");
        if (match.has("group")) {
            JSONObject group = match.getJSONObject("group");

            if (group.has("Teams")) {
                JSONArray teams = group.getJSONArray("Teams");

                for(int i=0; i < teams.length(); i++){
                    JSONObject teams_object = (JSONObject) teams.get(i);
                    String team_name = teams_object.getString("name");
                    String matches_played = teams_object.getString("p");
                    String matches_won = teams_object.getString("w");
                    String matches_lost = teams_object.getString("l");
                    String points = teams_object.getString("points");
                }
            }
        }
    } catch (JSONException e) {
        e.printStackTrace();
    }

edited May 9, 2019 at 6:16

answered May 9, 2019 at 6:10

Niranj Patel

33.3k11 gold badges101 silver badges137 bronze badges

1 Comment

Niranj Patel Over a year ago

@SaAshTechs Update your question with latest code, JSON and error

Brahma Datta · Accepted Answer · 2019-05-09 06:18:22Z

0

Try this @SaAsh, I have just edited by taking your answer

if (match.has("group")) {
JSONObject group = match.getJSONObject("group");

if (match.has("Teams")) {
    JSONObject teams = group.getJsonArray("Teams");


        for(int i = 0 ; i < teams.length();i++){
        JSONObject teams_object = teams.getJSONObject("i");
        String team_name = teams_object.getString("name");
        String matches_played = teams_object.getString("p");
        String matches_won = teams_object.getString("w");
        String matches_lost = teams_object.getString("l");
        String points = teams_object.getString("points");
      }
    }
}
}

edited May 9, 2019 at 6:18

answered May 9, 2019 at 5:43

Brahma Datta

1,1101 gold badge14 silver badges22 bronze badges

1 Comment

Brahma Datta Over a year ago

Are you passing any header type while calling it to server? @SaAshTechs

Collectives™ on Stack Overflow

Error while parsing JSON Object in Java Android

6 Answers 6

3 Comments

Comments

1 Comment

1 Comment

1 Comment

1 Comment

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

6 Answers 6

3 Comments

Comments

1 Comment

1 Comment

1 Comment

1 Comment

Your Answer

Sign up or log in

Post as a guest

Linked

Related