Checkbox handling in Selenium Java - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ Predict Output

intermediate

What is the output of this Selenium Java code snippet?

Consider the following Selenium Java code that checks a checkbox and prints its status. What will be printed?

Selenium Java

WebElement checkbox = driver.findElement(By.id("subscribe"));
checkbox.click();
System.out.println(checkbox.isSelected());

A true

B false

C NoSuchElementException

D ElementNotInteractableException

💡 Hint

Clicking a checkbox toggles its selection state.

After clicking the checkbox, it becomes selected, so isSelected() returns true.

❓ assertion

intermediate

Which assertion correctly verifies a checkbox is unchecked?

You want to assert that a checkbox with id "terms" is not selected. Which assertion is correct?

A assertFalse(driver.findElement(By.id("terms")).isSelected());

B assertTrue(driver.findElement(By.id("terms")).isSelected());

C assertEquals(true, driver.findElement(By.id("terms")).isSelected());

D assertEquals("unchecked", driver.findElement(By.id("terms")).getAttribute("checked"));

💡 Hint

Use assertFalse to check something is false.

isSelected() returns false if the checkbox is unchecked, so assertFalse is correct.

❓ locator

advanced

Which locator is best to find a checkbox with label text "Accept"?

You want to locate a checkbox input that has a label with text "Accept". Which locator is best practice?

A By.xpath("//label[text()='Accept']/input")

B By.id("Accept")

C By.cssSelector("input[type='checkbox'][label='Accept']")

D By.xpath("//input[@type='checkbox' and @id=//label[text()='Accept']/@for]")

💡 Hint

Labels often use the for attribute to link to checkbox id.

Option D uses XPath to find the checkbox whose id matches the for attribute of the label with text "Accept". This is the best practice for accessibility.

🔧 Debug

advanced

Why does this checkbox click fail with ElementNotInteractableException?

Given this code snippet, clicking the checkbox throws ElementNotInteractableException. Why?

WebElement checkbox = driver.findElement(By.id("newsletter"));
checkbox.click();

A The checkbox id is incorrect, so element is not found.

B The checkbox is hidden or covered by another element, so it cannot be clicked.

C The checkbox is already selected, so click is not allowed.

D The driver is not initialized properly.

💡 Hint

ElementNotInteractableException means the element is present but not clickable.

This exception usually happens if the element is hidden or overlapped by another element, preventing interaction.

❓ framework

expert

In a test framework, how to best verify multiple checkboxes are all selected?

You have a list of checkbox elements. Which code snippet correctly asserts all are selected?

A assertEquals(checkboxes.size(), checkboxes.stream().filter(cb -> cb.isSelected()).count());

B for(WebElement cb : checkboxes) { assertTrue(cb.isSelected()); }

C assertTrue(checkboxes.stream().allMatch(cb -> cb.isSelected()));

D assertFalse(checkboxes.stream().anyMatch(cb -> !cb.isSelected()));

💡 Hint

Use Java streams to check all elements satisfy a condition.

Option C uses allMatch to assert all checkboxes are selected in a clean and efficient way.