Get values and names names from JSON file

Question

My json response:

    {
    "Countries": [

        {

                "Country": "China",
                "Alpha2": "CN",
                "Alpha3": "CHN",

                "numbers": {
                    "Jon": "100",
                    "Mat": "200",
                    "SAM": "300"


                }
        },
         {

                "Country": "Italy",
                "Alpha2": "IT",
                "Alpha3": "ITA",

                "numbers": {
                    "Benny": "400",
                    "Jack": "500"


                }
         }

    ]
}

My code:

for (int i = 0; i < m_jArry.length(); i++) {
            JSONObject jo_inside = m_jArry.getJSONObject(i);

            if (jo_inside.getString("Country").equals("Italy"))
            {
                Log.d("DTAG",jo_inside.getString("Country"));
                Log.d("DTAG",jo_inside.getString("Alpha2"));
                Log.d("DTAG", jo_inside.getString("Alpha3"));

                JSONObject jo_inside2 = jo_inside.getJSONObject("numbers");
                Log.d("DTAG", "Size: "+jo_inside2.length());

                for (int j=0;j<jo_inside2.length();j++)
                {
                    //???
                }
            }

How can I get the name of value and his value? For this example I need to get Benny 400, Jack 500

I think it is what you are searching for : http://stackoverflow.com/questions/13573913/android-jsonobject-how-can-i-loop-through-a-flat-json-object-to-get-each-key-a — Blunderer, Jan 05 '16 at 11:41
This is more complex post but it does answer your question http://stackoverflow.com/questions/12870332/how-can-i-iterate-jsonobject-to-get-individual-items — Rohit5k2, Jan 05 '16 at 11:42

score 2 · Accepted Answer · answered Jan 05 '16 at 11:40

you can get all keys by using json.keys, in your case try with following code.

  Iterator<String> iter = jo_inside2.keys();
  while (iter.hasNext()) {
    String key = iter.next();
    try {
        Object value = jo_inside2.get(key);
    } catch (JSONException e) {
        //exception
    }
  }

score 2 · Answer 2 · answered Jan 05 '16 at 11:42

 if (jo_inside.getString("Country").equals("Italy"))
            {
                Log.d("DTAG",jo_inside.getString("Country"));
                Log.d("DTAG",jo_inside.getString("Alpha2"));
                Log.d("DTAG", jo_inside.getString("Alpha3"));

                JSONObject jo_inside2 = jo_inside.getJSONObject("numbers");
                Log.d("DTAG", "Size: "+jo_inside2.length());

                for (int j=0;j<jo_inside2.length();j++)
                {
                    Iterator<?> keys = jo_inside2.keys();

                while( keys.hasNext() ) 
                  {
                   String key = (String)keys.next();
                    if ( jo_inside2.get(key) instanceof JSONObject ) 
                     {
                           Object value = jo_inside2.get(key);
                     }
                   }
                  }
            }

score 1 · Answer 3 · answered Jan 05 '16 at 11:44

1

// get all keys from JSONObj

    Iterator<String> iterator = jo_inside2.keys();
      while (iterator.hasNext()) {
        String key = iterator.next();
        Log.i("TAG","key:"+key +"--Value::"+categoryJSONObj.optString(key);

  }

answered Jan 05 '16 at 11:44

CodingRat

1,934
3
23
43

can you accept this answer – CodingRat Jan 05 '16 at 15:10

Rohit · Answer 4 · 2016-01-05T13:06:09.600

0

    for(Iterator iterator =  jo_inside2.keys(); iterator.hasNext();) {
       String key = (String) iterator.next();
       System.out.println(key+" - "+jo_inside2.get(key));

      //Log.i("TAG",key +" - "+jo_inside2.get(key));
     }

edited Jan 05 '16 at 13:06

answered Jan 05 '16 at 13:00

Rohit

538
5
10

Get values and names names from JSON file

4 Answers4