Selenium Check if Element Exists

In selenium, we can check whether an element exists on a page using the findElement() and isDisplayed() methods. This article will discuss how we can check whether the element is visible using the above.

We will use the programsbuzz login page to enter incorrect credentials and then check whether the error message appears or not after the wrong inputs.

public static void main(String[] args) throws InterruptedException {
        WebDriverManager.chromedriver().setup();
        ChromeDriver driver = new ChromeDriver();
        driver.get("http://programsbuzz.com/user/login");
        driver.manage().window().maximize();
        driver.findElement(By.id("edit-name")).sendKeys("gg");
        driver.findElement(By.id("edit-pass")).sendKeys("mm");
        driver.findElement(By.xpath("//input[@value='Log in']")).click();
        Thread.sleep(4000);
        boolean errorMessage = driver.findElement(By.xpath("//div[@class='messages messages--error']")).isDisplayed();
        if (errorMessage) {
            System.out.println("Incorrect Credentials");
        } else {
            System.out.println("No Error Message");
        }
    }
}

Here we entered an incorrect username and password for login.
As soon as the error message popped, we grabbed the element and assigned isDisplayed() to it.

Using a simple if statement, we ensured that the error message is displayed and the element thus exists and is verified.