findElements for multiple matches in Selenium Java - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ Predict Output

intermediate

What is the size of the list returned by findElements?

Consider the following Selenium Java code snippet. What will be the size of the list elements after execution?

Selenium Java

List<WebElement> elements = driver.findElements(By.className("btn"));
System.out.println(elements.size());

A The number of elements with class 'btn' on the current page

B 0

C 1

D Throws NoSuchElementException

💡 Hint

Remember that findElements returns a list of all matching elements or an empty list if none found.

The findElements method returns a list of all matching elements. If no elements match, it returns an empty list with size 0. It does not throw an exception.

❓ assertion

intermediate

Which assertion correctly verifies multiple elements are found?

You want to assert that at least 3 elements with tag name 'input' are present on the page. Which assertion is correct?

Selenium Java

List<WebElement> inputs = driver.findElements(By.tagName("input"));

A assertNull(inputs);

B assertTrue(inputs.size() >= 3);

C assertFalse(inputs.isEmpty());

D assertEquals(inputs.size(), 3);

💡 Hint

You want to check if there are three or more elements, not exactly three.

assertTrue(inputs.size() >= 3) checks that the list has at least 3 elements. assertEquals(inputs.size(), 3) would fail if more than 3 exist. assertFalse(inputs.isEmpty()) only checks if there is at least one element. assertNull is invalid because findElements never returns null.

🔧 Debug

advanced

Why does findElements return an empty list instead of throwing an exception?

You wrote code using findElements but it returns an empty list when no elements match. Why does it not throw NoSuchElementException like findElement?

A Because the locator syntax is incorrect and silently ignored

B Because findElements always returns null when no matches

C Because the driver is not initialized properly

D Because findElements is designed to return zero or more elements safely without exceptions

💡 Hint

Think about the difference in behavior between findElement and findElements.

findElements returns a list of matching elements or an empty list if none found. It does not throw exceptions for no matches. findElement throws NoSuchElementException if no element is found.

❓ locator

advanced

Which locator finds multiple elements with attribute data-test='value'?

You want to find all elements with attribute data-test equal to value. Which locator is correct?

A By.name("data-test='value'")

B By.id("data-test='value'")

C By.cssSelector("[data-test='value']")

D By.className("data-test='value'")

💡 Hint

Attribute selectors in CSS use square brackets.

By.cssSelector("[data-test='value']") correctly selects elements with attribute data-test equal to value. The other locators do not select by attribute values.

❓ framework

expert

How to handle stale element references when using findElements?

You use findElements to get multiple elements, but sometimes get StaleElementReferenceException when interacting with them. What is the best approach to handle this?

A Refetch the elements using findElements again before interacting with them

B Catch the exception and ignore it without retrying

C Store the elements once and reuse them without refetching

D Use findElement instead of findElements to avoid stale references

💡 Hint

Think about how page updates affect element references.

StaleElementReferenceException occurs when the page changes and previously found elements are no longer valid. Refetching elements with findElements ensures fresh references.