Sometimes when we manipulate data, a lot of data is in jsonarry format.
such as:

[{"name":"Test Data","id":1},{"name":"Test Data 2","id":2}]

Such a format is very typed in a tabular data type. But we have to take the name with id 1 so we have to change the variable first. If you need to operate such a type multiple times, it is very troublesome.

Here we can see that the id is unique. Then we can find a way to convert it to jsonobject so that we can easily get the name according to the specified id.

 public static JSONObject toJSONObject(JSONArray jsonArray, String key) {
        JSONObject jsonObject = new JSONObject();
        for (int i = 0; i < jsonArray.size(); i++) {
            JSONObject temp = jsonArray.getJSONObject(i);
            String[] keyValues = StringUtil.StringToArray(key);
            if (keyValues != null) {
                for (String item : keyValues) {
                    String[] k = item.split(":");
                    String[] keys = k[0].split("_");
                    String keyName = k[0];
                    if (keys.length == 2) {
                        keyName = keys[0];
                    }
                    String jsonKeyName = temp.getString(keyName);
                    if (keys.length == 2) {
                        jsonKeyName += "_" + keys[1];
                    }
                    jsonObject.put(jsonKeyName, temp.getString(k[1]));
                }
            }
        }
        return jsonObject;
    }

This method can be implemented simply, but it may not be the best implementation. We welcome your valuable suggestions.

List each case here
Case 1:

raw data: 
[{"name":"Test Data","id":1},{"name":"Test Data 2","id":2}]

 Call method:
toJSONObject(jsonArray, "id:name")

 Result:
{"1":"Test Data","2":"Test Data 2"}

Case 2: (This is only our own business needs to be added)

raw data: 
[{"name":"Test Data","id":1},{"name":"Test Data 2","id":2}]

 Call method:
toJSONObject(jsonArray, "id_test:name")

 Result:
{"1_test":"Test Data","2_test":"Test Data 2"}

Case 3:

raw data: 
[{"no":100,"name":"Test Data","id":1,"desc":"Test Description"},{"no":101,"name":"Test Data 2","id":2,"desc":"Test Description 2"}]

 Call method:
toJSONObject(jsonArray, "id:name,no:desc")

 Result:
{"1":"Test Data","100":"Test Description","2":"Test Data 2","101":"Test Description 2"}