CODEWITHSUNDEEP
javajson
Pawan
Pawan

Reputation: 32321

HOW to remove duplicate JSON Objects from JSON Array

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.

Upvotes: 0

Views: 5952

Answers (1)

npinti
npinti

Reputation: 52185

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.

Upvotes: 1

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