private void populate() {
        //populate text fields with two random number
        List<WebElement> elems = driver.findElements(By.tagName("textField"));
        Random random = new Random();
        for (WebElement elem : elems) {
            int rndNum = random.nextInt(MAX - MIN + 1) + MIN;
            elem.sendKeys(String.valueOf(rndNum));
            values.add(rndNum);
        }
    }