Determine the JSON string return type Object or array

    public enum Json_type {        /**         * jsonobject */        json_type_object,        /**         *         Jsonarray        * * Json_type_array,        /**         * is not a JSON-formatted string */        json_type_error    }    /***     *     * Gets the JSON type     * Judgment Rule     * Determines whether the first letter is {or [if none is not a JSON-formatted text     *     * @param str     * @return    * * public static Json_type Getjsontype (String str) {        if (Pubstring.isempty (str)) {            return json_type. Json_type_error;        }        Final char[] Strchar = str.substring (0, 1). ToCharArray ();        Final char firstchar = strchar[0];        if (Firstchar = = ' {') {            return json_type. Json_type_object;        } else if (Firstchar = = ' [') {            return json_type. Json_type_array;        } else {            return json_type. Json_type_error;        }    }

Determine the JSON string return type Object or array