Method append

src/main/java/com/mcbans/plugin/org/json/JSONObject.java:398–410

Append values to the array under a key. If the key does not exist in the JSONObject, then the key is put in the JSONObject with its value being a JSONArray containing the value parameter. If the key was already associated with a JSONArray, then the value parameter is appended to it. @param key A k

(String key, Object value)

     *  associated with the key is not a JSONArray.
     */
    public JSONObject append(String key, Object value) throws JSONException {
        testValidity(value);
        Object object = opt(key);
        if (object == null) {
            put(key, new JSONArray().put(value));
        } else if (object instanceof JSONArray) {
            put(key, ((JSONArray)object).put(value));
        } else {
            throw new JSONException("JSONObject[" + key +
                    "] is not a JSONArray.");
        }
        return this;
    }


    /**