how to convert jsonobject into jsonarray and also change all keys with all custom same keys java and-CodePudding

Code :

 Map<String, Integer> map = new LinkedHashMap<>();

                        for (int j = 0; j < jsonArray.length(); j  ) {
                            JSONObject list = jsonArray.getJSONObject(j);




                            String key = list.getString("symbol")   list.getString("groupname");


                            if (!map.containsKey(key)) {
                                map.put(key, list.getInt("openqty"));

                            } else {
                                int val = map.get(key)   list.getInt("openqty");
                                map.put(key, val);



                            }

                            System.out.println("map "  map);


                        }

                 //converted map into jsonstring
                        String jsonString = new JSONObject(map).toString();
                        System.out.println("jsonstring "   jsonString);

Output :

     {"SILVERRohit":0,"DINRCosmic":20,"NATURALGASCosmic":0,"NGCosmic":0,"SICosmic":-5,"SILVERCosmic":35,"DINRRishi":0,"SIRishi":0,"SILVERRishi":0,"CLAmitTA":-6,
"CRUDEOILAmitTA":60,"DINRAmitTA":24,"GCAmitTA":0,"GOLDAmitTA":0,"SIAmitTA":0,"SILVERAmitTA":0,"DINRPraveen":0,"GCPraveen":0,"GOLDPraveen":0,"DINRHarsh":46,
"GCHarsh":-9,"GOLDHarsh":28,"SIHarsh":9,"SILVERHarsh":-45,"DINRGovind":-160,"SIGovind":11}

^^ this is an jsonobject i have got by using linkedhashmap . So, now my problem is i want to convert it into jsonArray format to set in model (recyclerview) i have also tried by iterating but getting same values in each single row .

Not only this but also i want to change all jsonobject keys to "open" so that i can use this in recyclerview for each single row.

Expected output :

[    {"open":0},{"open":20} , {"open":0} ,   {"open":0} ,{"open":-5 } ,
{"open":35 } , {"open":0} ,{"open":0 },{"open":0 } ,{"open":-6 },
{"open":60},{"open":24},{"open":0},{"open":0},{"open":0},
{"open":0},{"open":0},{"open":0},{"open":0},{"open":46},
{"open":-9},{"open":28},{"open":9},{"open":-45},
{"open":-160},{"open":11}    ]

CodePudding user response：

as you got the hashmap ,how about iterating the map .like this

Map<String,String> data = MapUtil.newHashMap();
        JSONArray jsonArray = new JSONArray();
        for (Map.Entry<String, String> entry : data.entrySet()) {
            Map<String,String> json = MapUtil.newHashMap();
            json.put("open", entry.getValue());
            jsonArray.add(json);
        }
        return jsonArray;