class CaptchaUtil {

    @Contract(pure = true)
    public int evalCalcCaptcha(BufferedImage image) {
        String str = ocrUtil.ocrCalcCaptcha(image);
        if (str == null) return -1;
        return calc(str);
        /*try {
            return (Integer) scriptEngine.eval(str);
        } catch (ScriptException e) {
            return -1;
        }*/
    }

    public  CaptchaUtil();
    public  CaptchaUtil(OCRUtil ocrUtil);

}