How to create JSONArray using map in java

Question

I have the below code which will create nested JSON Object with JSONArray.

public static void main(String[] args) {
        JSONArray array=new JSONArray();
        JSONObject jsonObject=new JSONObject();
        JSONObject jsonObject1=new JSONObject();
        JSONObject jsonObject2=new JSONObject();
        jsonObject2.put("testapp", true);
        array.put(jsonObject2);
        jsonObject1.put("test", array);
        jsonObject1.put("test2", false);
        jsonObject1.put("app", 1);
        jsonObject.put("MAINs", jsonObject1);
        System.out.println(jsonObject);
    }

Output is:

{"MAINs":{"app":1,"test2":false,"test":[{"testapp":true}]}}

But I wanted to create the map representation of the above JSON object in java like how I have created using JSONObject and JSONArray.

you can use the Gson library. You can use its toJson method and it will deserialize any object you send as its input argument. — Amin Heydari Alashti
– Amin Heydari Alashti, Commented Mar 18, 2020 at 20:38

Rohit Kumar · Accepted Answer · 2020-03-19 11:43:22Z

1

You can use toMap method present in org.json library which will convert JSONObject to Map object.

public static void main(String[] args) {
    JSONArray array=new JSONArray();
    JSONObject jsonObject=new JSONObject();
    JSONObject jsonObject1=new JSONObject();
    JSONObject jsonObject2=new JSONObject();
    jsonObject2.put("testapp", true);
    array.put(jsonObject2);
    jsonObject1.put("test", array);
    jsonObject1.put("test2", false);
    jsonObject1.put("app", 1);
    jsonObject.put("MAINs", jsonObject1);
    System.out.println(jsonObject);
     Map<String, Object> map=jsonObject.toMap();
     System.out.println(map);
}

answered Mar 19, 2020 at 11:43

Rohit Kumar

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