XenonStack Interview Questions and Answers

ArrayList in Java is a resizable array implementation of the List interface, allowing dynamic storage of elements.

• Dynamic Size: Unlike arrays, ArrayLists can grow and shrink in size. Example: ArrayList<String> list = new ArrayList<>();

• Indexed Access: Elements can be accessed using an index. Example: list.add("Hello"); String str = list.get(0);

• Type Safety: ArrayLists can hold objects of a specific type ...read more

Automating dropdowns involves selecting options programmatically in UI testing frameworks.

• Use Selenium WebDriver to interact with dropdowns: `Select select = new Select(driver.findElement(By.id('dropdownId')));`

• To select by visible text: `select.selectByVisibleText('Option1');`

• To select by index: `select.selectByIndex(0);`

• To select by value: `select.selectByValue('value1');`

• Ensure to wait for the dropdown to be vi...read more

Reverse a linked list by changing the direction of pointers.

• Start with three pointers: current, previous, and next.

• Iterate through the linked list, updating pointers to reverse the direction.

• Update the head of the linked list to be the previous node once iteration is complete.

I am interested in working on web development technologies.

• I have experience in HTML, CSS, and JavaScript.

• I am familiar with front-end frameworks like React and Angular.

• I am also interested in back-end technologies like Node.js and PHP.

• I am excited to learn new technologies and stay up-to-date with industry trends.

Designing a full stack website involves creating both front-end and back-end components to provide a complete user experience.

• Identify the requirements and functionalities of the website

• Design the user interface using HTML, CSS, and JavaScript

• Develop the back-end using a server-side language like Node.js or Python

• Implement a database to store and retrieve data

• Test the website for functionality and user experience

• D...read more