Add ArrayList to another ArrayList dynamically is treading values

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{
   "clientes":[
      {
         "codigo":"1341",
         "empresa":0,
         "nombre":"asd",
         "e_mail":"cli@cli.com"
      },
      {
         "codigo":"5435",
         "empresa":0,
         "nombre":"asd",
         "e_mail":"cli@cli.com"
      }
   ]
}

I am trying to extract the keys and values from a json then in an array I put all the keys and in another array all the values. The problem now is that more than 1 client can come, so I have to make a list of arrays of keys, and a list of arrays of values

As you can see, in the output the values of position [0] are stepped on with that of position [1] and it shouldn't be like that, because in the "codigo" field I send different values ..

ArrayList listArrayKeys = new ArrayList();
ArrayList listArrayValues = new ArrayList();
ArrayList<String> arrayKeys = new ArrayList<>();
ArrayList<String> arrayValues = new ArrayList<>();
DatabaseHelper databaseHelper = new DatabaseHelper(this);
JSONObject jsonObject;
String tableName;

void getKeysAndValues() throws JSONException {
try {
    Iterator<String> keys = jsonObject.keys();
    while(keys.hasNext()) {
        String key = keys.next();
        System.out.println(key);
        if(jsonObject.get(key) instanceof JSONArray) {
            JSONArray array = (JSONArray) jsonObject.get(key);
            for(int i = 0; i < array.length(); i++){
                JSONObject object = (JSONObject) array.get(i);
                Iterator<String> innerKeys = object.keys();
                arrayValues.clear();
                while(innerKeys.hasNext()) {
                    String innerKey = innerKeys.next();
                    String innerValue = object.getString(innerKey);
                    arrayKeys.add(innerKey);
                    arrayValues.add(innerValue);
                    System.out.println(innerKey);
                }
                listArrayKeys.add(arrayKeys);
                listArrayValues.add(arrayValues);
            }
            Log.d("ARRAYVALUES", String.valueOf(listArrayValues));
        }
    }

} catch (JSONException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
}
}

output:

[[5435, 0, asd, cli@cli.com], [5435, 0, asd, cli@cli.com]

should be:

[[1341, 0, asd, cli@cli.com], [5435, 0, asd, cli@cli.com]
for-loop android json java
1 Answers

I think it's just a matter of replace array.clear() with a new array. this way, you'll be adding keys to two arrays as desired

    while(keys.hasNext()) {
        String key = keys.next();
        System.out.println(key);
        if(jsonObject.get(key) instanceof JSONArray) {
            JSONArray array = (JSONArray) jsonObject.get(key);
            for(int i = 0; i < array.length(); i++){
                JSONObject object = (JSONObject) array.get(i);
                Iterator<String> innerKeys = object.keys();
//                arrayValues.clear();
                arrayValues = new ArrayList<>();
                while(innerKeys.hasNext()) {
                    String innerKey = innerKeys.next();
                    String innerValue = object.getString(innerKey);
                    arrayKeys.add(innerKey);
                    arrayValues.add(innerValue);
                    System.out.println(innerKey);
                }
                listArrayKeys.add(arrayKeys);
                listArrayValues.add(arrayValues);
            }
            Log.d("ARRAYVALUES", String.valueOf(listArrayValues));
        }
    }
user_12914920
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