1. In your framework how have you and why have used abstract classes and interfaces? 2. Program on reverse string 3. List and set differences 4. Exception handling in selenium 5. findElement and findElements 6. Can we create object of abstract class ? 7. Abstract class and interface differences ?

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Answers to interview questions for Senior Automation Engineer position

Abstract classes and interfaces are used for creating reusable code and implementing polymorphism
Example of abstract class: WebDriver in Selenium
Example of interface: WebElement in Selenium
Reverse string program can be implemented using StringBuilder or char array
List is ordered and allows duplicates, Set is unordered and does not allow duplicates
Exception handling in Selenium can be done using try-catch blocks
findElement returns the first matching element, findElements returns a list of all matching elements
Object of abstract class cannot be created, but reference variable can be created
Abstract class can have both abstract and non-abstract methods, interface can only have abstract methods
Example of abstract class and interface differences: abstract class can have constructor, interface cannot

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1. In your framework how have you and why have used abstract classes and interfaces? 2. Program on reverse string 3. List and set differences 4. Exception handling in selenium 5. findElement and findElements 6. Can we create object of abstract class ? 7. Abstract class and interface differences ?

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