print multi dimentional json array in java [duplicate]

Question

My app fetches JSON response from server. The response string has multiple rows and columns. I need to print this in java.

Here is my JSON response :

[
  {
    "name": "name2",
    "id": "99",
    "email": "[email protected]"
  },
  {
    "name": "zca",
    "id": "96",
    "email": "[email protected]",
  }
]

this is java part :

    OkHttpClient client = new OkHttpClient();

    String url = ServerConstants.BROWSE_URL;
    //String url = "https://reqres.in/api/users?page=2";

    Request request = new Request.Builder()
            .url(url)
            .build();

    client.newCall(request).enqueue(new Callback()
    {
        @Override
        public void onFailure(Call call, IOException e)
        {
            e.printStackTrace();
        }

        @Override
        public void onResponse(Call call, Response response) throws IOException
        {
            if (response.isSuccessful())
            {
                final String myResponse = response.body().string();
                //System.out.println(Arrays.asList(new BundleFunctions().MakeArrayListFormJSON(myResponse)));
                bundle = new BundleFunctions().MakeBundleFromJSON(myResponse);
                //System.out.println("this is size ------- "+bundle.size());
                //System.out.println("this is response ------ "+myResponse);
                Browse.this.runOnUiThread(new Runnable()
                {
                    @Override
                    public void run()
                    {
                        tv.setText(myResponse);

                        Set<String> keys = bundle.keySet();

                        for(String key : keys)
                        {
                            Object o = bundle.get(key);
                        }
                    }
                });
            }
        }
    });

I need a print on each person like this in java :

(Person number is according to array index FCFS)

Person 1 - Name : name2 , id : 99 , email : [email protected]

Person 2 - Name : zca , id : 96 , email : [email protected]

Please show me the simplest way to do this

Android has built in classes to handle JSON such as JSONArray and JSONObject. use them, then it is a simple matter of looping through the JSONarray — Bentaye
– Bentaye, Commented Mar 22, 2019 at 15:30
@Christopher please have a look. this method only get 1 row not the whole thing by Object o — NinjaStar
– NinjaStar, Commented Mar 22, 2019 at 15:34

Ryuzaki L · Accepted Answer · 2019-03-22 15:33:01Z

1

JSON is really clear, which is Array of Objects in your case Person object, create Person POJO class

Person

public class Person {

 private String name;

 private String id;

 private String email;

 // getters and setters

 }

Parse the above json to List<Person> and print each Person as you like them

answered Mar 22, 2019 at 15:33

Ryuzaki L

40.4k14 gold badges81 silver badges111 bronze badges

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

6 Comments

NinjaStar Over a year ago

[java updated] How can i do that ? if i use Object o , it only catches 1 row

Ryuzaki L Over a year ago

show this bundle = new BundleFunctions().MakeBundleFromJSON(myResponse); bundle @NinjaStar

NinjaStar Over a year ago

pastebin.com/naDgcuqs

Ryuzaki L Over a year ago

That's not right approach, you need to parse Json String to List<Person> i believe you are using json library @NinjaStar

NinjaStar Over a year ago

no i am not using library, but which one should i use?

|

ringadingding · Accepted Answer · 2019-03-22 15:36:31Z

0

Your example of JSON doesn't looks multi dimensional array. It's an array with bunch of objects into it. If this is for java, why not use jackson or GSon or library like that to obtain object in an array list! All you have to define is a POJO object with matching variable names with getters and setters.

answered Mar 22, 2019 at 15:36

ringadingding

4755 silver badges15 bronze badges

2 Comments

NinjaStar Over a year ago

can you show me an easy example please?

ringadingding Over a year ago

download GSon lib from google. Take the object created by Deadpool, you can find reference : tutorials.jenkov.com/java-json/gson.html

Collectives™ on Stack Overflow

print multi dimentional json array in java [duplicate]

2 Answers 2

6 Comments

2 Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

6 Comments

2 Comments

Linked

Related