Radio button 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 tries to select a radio button and print its status. What will be printed?

Selenium Java

WebElement radioBtn = driver.findElement(By.id("option1"));
radioBtn.click();
System.out.println(radioBtn.isSelected());

A ElementNotInteractableException

B false

C NoSuchElementException

D true

💡 Hint

Clicking a radio button sets it as selected, so isSelected() returns true.

After clicking the radio button, it becomes selected. The isSelected() method returns true if the element is selected.

❓ assertion

intermediate

Which assertion correctly verifies a radio button is selected in Selenium Java?

You want to assert that a radio button with id 'genderMale' is selected. Which assertion is correct?

A assertEquals(driver.findElement(By.id("genderMale")).getText(), "selected");

B assertFalse(driver.findElement(By.id("genderMale")).isDisplayed());

C assertTrue(driver.findElement(By.id("genderMale")).isSelected());

D assertNull(driver.findElement(By.id("genderMale")).getAttribute("checked"));

💡 Hint

Use isSelected() to check if a radio button is selected.

The isSelected() method returns true if the radio button is selected. The assertion assertTrue verifies this condition.

❓ locator

advanced

Which locator is best to select a radio button with label text 'Subscribe'?

You want to select the radio button associated with the label text 'Subscribe'. Which locator is best?

A By.xpath("//label[text()='Subscribe']/preceding-sibling::input[@type='radio']")

B By.id("Subscribe")

C By.cssSelector("input[type='radio'][value='Subscribe']")

D By.name("Subscribe")

💡 Hint

Use XPath to find input radio before label with exact text.

Option A uses XPath to find the input radio button that is a sibling before the label with text 'Subscribe'. This is precise and reliable.

🔧 Debug

advanced

Why does this Selenium Java code fail to select the radio button?

Given this code snippet, why does the radio button not get selected? WebElement radio = driver.findElement(By.name("choice")); radiobutton.click();

A The click() method requires JavaScript executor for radio buttons.

B Variable name 'radiobutton' is undefined; should be 'radio'.

C Radio buttons cannot be clicked using Selenium WebDriver.

D The locator By.name("choice") is incorrect for radio buttons.

💡 Hint

Check variable names carefully for typos.

The variable used to find the element is 'radio', but the code calls click() on 'radiobutton' which is undefined, causing a compilation error.

❓ framework

expert

In a Selenium Java test framework, which method best ensures a radio button is selected before proceeding?

You want to create a reusable method that selects a radio button only if it is not already selected. Which method implementation is best?

A

public void selectRadioButton(WebElement radio) {
  if (!radio.isSelected()) {
    radio.click();
  }
}

B

public void selectRadioButton(WebElement radio) {
  radio.click();
}

C

public void selectRadioButton(WebElement radio) {
  if (radio.isDisplayed()) {
    radio.click();
  }
}

D

public void selectRadioButton(WebElement radio) {
  if (radio.getAttribute("checked") == null) {
    radio.click();
  }
}

💡 Hint

Check selection status before clicking to avoid unnecessary actions.

Option A checks if the radio button is not selected before clicking, preventing redundant clicks and potential side effects.