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

yeah if you find any problem you can ping i will solve it @SaAshTechs — Brahma Datta, May 09 '19 at 05:48
@g.brahmaDatta, I am getting the error 'Cannot resolve method getJSONArray(java.lang.String)' — SaAsh Techs, May 09 '19 at 05:56
did you try my edited answer? @SaAshTechs.I have wrote group instead of teams — Brahma Datta, May 09 '19 at 05:57
Just try it. I didn't try in my code. I have just written it without checking @SaAshTechs — Brahma Datta, May 09 '19 at 05:58
check my edited answer @SaAshTechs . I made a mistake.Now you will not get error — Brahma Datta, May 09 '19 at 06:03
But sir, I am still getting the same error as I gave in my question @g.brahmaDatta — SaAsh Techs, May 09 '19 at 06:08
Possible duplicate of [How to parse JSON in Java](https://stackoverflow.com/questions/2591098/how-to-parse-json-in-java) — Basi, May 09 '19 at 06:17
I have edited my answer by using the same format of your answer just check it @SaAshTechs — Brahma Datta, May 09 '19 at 06:18

Rajnish suryavanshi · Answer 1 · 2019-05-09T10:27:07.870

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 09 '19 at 10:27

answered May 09 '19 at 05:47

Rajnish suryavanshi

3,168
2
17
23

Thank you, I am getting the error 'Cannot resolve method getJSONArray(java.lang.String)' @Rajnish suryavanshi – SaAsh Techs May 09 '19 at 06:00
what string name you are passing? – Rajnish suryavanshi May 09 '19 at 10:09
check my updated code. I checked and I am getting output as well. – Rajnish suryavanshi May 09 '19 at 10:27

Brahma Datta · Answer 2 · 2019-05-09T06:18:22.243

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");
      }
    }
}
}

Are you passing any header type while calling it to server? @SaAshTechs — Brahma Datta, May 09 '19 at 10:16

score 0 · Answer 3 · answered May 09 '19 at 06:07

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();
}

@SaAshTechs Share your logcat, then I will be able to help you out and full activity code. — Kanwarpreet Singh, May 09 '19 at 11:12

score 0 · Answer 4 · answered May 09 '19 at 06:09

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");

    }
}

@SaAshTechs better you go for gson parsing – Basi May 09 '19 at 09:56 — Basi, May 09 '19 at 09:56

Niranj Patel · Answer 5 · 2019-05-09T06:16:17.430

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();
    }

@SaAshTechs Update your question with latest code, JSON and error — Niranj Patel, May 09 '19 at 09:58

Gunaseelan · Accepted Answer · 2019-05-09T12:39:33.430

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();
}

Error while parsing JSON Object in Java Android

6 Answers6