findElements for multiple matches in Selenium Java - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to find all elements with the class name "item".

Selenium Java

List<WebElement> elements = driver.findElements(By.[1]("item"));

Drag options to blanks, or click blank then click option'

AclassName

Bid

Cname

DtagName

Attempts:

3 left

💡 Hint

Common Mistakes

Using By.id instead of By.className

Using findElement instead of findElements

The findElements method with By.className locates all elements matching the given class.

2fill in blank

medium

Complete the code to check if any elements with the tag name "button" exist.

Selenium Java

if (!driver.findElements(By.[1]("button")).isEmpty()) {
    System.out.println("Buttons found");
}

Drag options to blanks, or click blank then click option'

Aid

Bxpath

CcssSelector

DtagName

Attempts:

3 left

💡 Hint

Common Mistakes

Using By.id or By.cssSelector incorrectly

Not checking if the list is empty before using it

Using By.tagName finds all elements with the specified tag, here "button".

3fill in blank

hard

Fix the error in the code to correctly find all elements with the CSS selector ".active".

Selenium Java

List<WebElement> activeElements = driver.[1](By.cssSelector(".active"));

Drag options to blanks, or click blank then click option'

AfindElement

BfindElements

CfindAll

DfindBy

Attempts:

3 left

💡 Hint

Common Mistakes

Using findElement instead of findElements

Using non-existent methods like findAll or findBy

findElements returns a list of all matching elements, while findElement returns only the first match.

4fill in blank

hard

Fill both blanks to create a list of elements with the name "option" and check if the list is empty.

Selenium Java

List<WebElement> options = driver.[1](By.[2]("option"));
if (options.isEmpty()) {
    System.out.println("No options found");
}

Drag options to blanks, or click blank then click option'

AfindElements

BfindElement

Cname

DclassName

Attempts:

3 left

💡 Hint

Common Mistakes

Using findElement instead of findElements

Using By.className instead of By.name

Use findElements to get all matching elements and By.name to locate by the "name" attribute.

5fill in blank

hard

Fill all three blanks to find all elements with the CSS class "menu-item", get their count, and print it.

Selenium Java

List<WebElement> items = driver.[1](By.[2]("menu-item"));
int count = items.[3]();
System.out.println("Found " + count + " menu items.");

Drag options to blanks, or click blank then click option'

AfindElements

Bsize

CclassName

DfindElement

Attempts:

3 left

💡 Hint

Common Mistakes

Using findElement instead of findElements

Using By.id instead of By.className

Using length instead of size() for list size

Use findElements to get all elements, By.className to locate by class, and size() to get the count.

Practice

1. What does the Selenium method findElements return when multiple elements match the locator?

easy

A. A single WebElement or null if none found

B. Only the first matching WebElement

C. A list of all matching WebElements

D. An error if more than one element matches

Solution

1. Step 1: Understand the purpose of findElements

   The method findElements is designed to find all elements matching a locator, not just one.

2. Step 2: Check the return type

   It returns a list (java.util.List) of WebElements, which can be empty if no matches are found.

3. Final Answer:

   A list of all matching WebElements -> Option C

4. Quick Check:

   findElements returns list = D [OK]

Hint: Remember: findElements always returns a list, even if empty [OK]

Common Mistakes:

• Confusing findElements with findElement which returns single element
• Expecting an error when multiple matches occur
• Assuming null is returned if no matches

2. Which of the following is the correct syntax to find all buttons on a page using Selenium Java?

easy

A. List<WebElement> buttons = driver.findElements(By.tagName("button"));

B. WebElement buttons = driver.findElements(By.tagName("button"));

C. List<WebElement> buttons = driver.findElement(By.tagName("button"));

D. WebElement buttons = driver.findElement(By.tagName("button"));

Solution

1. Step 1: Identify correct method and return type

   To get multiple elements, use findElements which returns a List<WebElement>.

2. Step 2: Check syntax correctness

   List<WebElement> buttons = driver.findElements(By.tagName("button")); correctly uses List<WebElement> and findElements with By.tagName("button").

3. Final Answer:

   List<WebElement> buttons = driver.findElements(By.tagName("button")); -> Option A

4. Quick Check:

   Multiple elements need findElements + List [OK]

Hint: Use findElements with List<WebElement> for multiple matches [OK]

Common Mistakes:

• Using findElement instead of findElements for multiple elements
• Assigning findElements result to a single WebElement variable
• Mixing findElement with List type

3. What will be the output of the following code snippet?

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

Assuming the page has 4 elements with class "item".

medium

A. 1

B. 4

C. 0

D. Throws NoSuchElementException

Solution

1. Step 1: Understand findElements behavior

   findElements returns a list of all matching elements. Here, 4 elements have class "item".

2. Step 2: Check the size of the list

   Calling items.size() returns the number of elements found, which is 4.

3. Final Answer:

   4 -> Option B

4. Quick Check:

   items.size() = 4 [OK]

Hint: items.size() gives count of all matched elements [OK]

Common Mistakes:

• Expecting findElements to throw exception if multiple matches
• Confusing findElements with findElement which throws exception if none
• Assuming size() returns 1 always

4. Identify the error in the following code snippet:

List<WebElement> links = driver.findElements(By.cssSelector("a.link"));
System.out.println(links.get(5).getText());

Assuming the page has only 3 matching elements.

medium

A. Syntax error in CSS selector

B. NoSuchElementException thrown by findElements

C. NullPointerException because links is null

D. IndexOutOfBoundsException at links.get(5)

Solution

1. Step 1: Check findElements result size

   findElements returns a list with 3 elements because only 3 match the selector.

2. Step 2: Accessing index 5 causes error

   Trying to get element at index 5 (6th element) causes IndexOutOfBoundsException because list size is 3.

3. Final Answer:

   IndexOutOfBoundsException at links.get(5) -> Option D

4. Quick Check:

   Accessing invalid index = IndexOutOfBoundsException [OK]

Hint: Check list size before accessing by index to avoid errors [OK]

Common Mistakes:

• Expecting NoSuchElementException from findElements when no matches
• Assuming list is null if no matches (it's empty, not null)
• Ignoring list size before get(index)

5. You want to click all buttons with class "submit-btn" on a page. Which code snippet correctly does this using findElements?

hard

A. List<WebElement> buttons = driver.findElements(By.className("submit-btn"));
for(WebElement btn : buttons) {
btn.click();
}

B. WebElement button = driver.findElement(By.className("submit-btn"));
button.click();

C. List<WebElement> buttons = driver.findElement(By.className("submit-btn"));
for(WebElement btn : buttons) {
btn.click();
}

D. driver.findElements(By.className("submit-btn")).click();

Solution

1. Step 1: Use findElements to get all matching buttons

   List<WebElement> buttons = driver.findElements(By.className("submit-btn")); for(WebElement btn : buttons) { btn.click(); } correctly uses findElements to get a List of all buttons with class "submit-btn".

2. Step 2: Iterate over list and click each button

   The for-each loop clicks each button in the list, which is the correct way to handle multiple elements.

3. Final Answer:

   List<WebElement> buttons = driver.findElements(By.className("submit-btn")); for(WebElement btn : buttons) { btn.click(); } -> Option A

4. Quick Check:

   findElements + loop to click all = B [OK]

Hint: Use findElements + loop to act on multiple elements [OK]

Common Mistakes:

• Using findElement which returns only one element
• Trying to call click() directly on list
• Assigning findElements result to single WebElement