HOW to remove duplicate JSON Objects from JSON Array

Question

I have got the JSON as below

{
    "brands": [
        {
            "name": "ACC",
            "quantity": "0",
            "listedbrandID": 1,
            "status": "0"
        }
    ],
    "others": [
        {
            "name": "dd",
            "quantity": "55"

        },
        {
            "name": "dd",
            "quantity": "55"

        }

    ]
}

How can i remove the duplicates from others JSON array

i have tried as following

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;


String json = "{
    "brands": [
        {
            "name": "ACC",
            "quantity": "0",
            "listedbrandID": 1,
            "status": "0"
        }
    ],
    "others": [
        {
            "name": "dd",
            "quantity": "55"

        },
        {
            "name": "dd",
            "quantity": "55"

        }

    ]
}
";



JSONObject json_obj = new JSONObject(json);

        JSONArray array = json_obj.getJSONArray("others");

        HashMap<String, String> map = new HashMap<String, String>();

        System.out.println(array.length());

        for(int i=0;i<array.length();i++)
        {
            String name = array.getJSONObject(i).getString("name");

            String quantity = array.getJSONObject(i).getString("quantity");

            if(name!=null && !name.trim().equals(""))
            {
            map.put(name, quantity);
            }

        }

But no idea how to remove duplicate JSON other than which are present under Map only.

Consider using a Set rather than a Map.

Henrik Aasted Sørensen
– Henrik Aasted Sørensen

2015-05-21 10:09:56 +00:00
Commented May 21, 2015 at 10:09 — Henrik Aasted Sørensen
– Henrik Aasted Sørensen, Commented May 21, 2015 at 10:09

npinti · Accepted Answer · 2015-05-21 10:13:47Z

1

Create an object representing your Others. It will have a name and quantity property and it will also override the equals method, wherein, two Other objects are considered to be equal if they have the same name and quantity properties.

Once you have that, iterate over your JSON, create a new Other object and place it in a HashSet<Other>. The .equals will ensure that the HashSet will contain unique items, as per your definition of unique.

answered May 21, 2015 at 10:13

npinti

52.2k5 gold badges74 silver badges98 bronze badges

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

Collectives™ on Stack Overflow

HOW to remove duplicate JSON Objects from JSON Array

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related