Nithra Interview Questions and Answers

API stands for Application Programming Interface. It is a set of rules and protocols that allows different software applications to communicate with each other.

• APIs are used to enable interaction between different software systems or components.

• They define the methods and data formats that applications can use to request and exchange information.

• APIs are commonly used in web development to integrate third-party services or access data from external sources.

• Examples of APIs in...read more

The value of the variable in the given function

• Check the function code to determine how the variable is assigned or manipulated

• Consider any input parameters or external factors that may affect the variable's value

• Trace the execution of the function to understand the flow of control and any conditional statements

• Use debugging tools or print statements to observe the variable's value during runtime

Object-oriented programming is a programming paradigm based on the concept of objects, which can contain data and code.

• Encapsulation: bundling data and methods that operate on the data into a single unit (object)

• Inheritance: ability of a class to inherit properties and behavior from another class

• Polymorphism: ability to present the same interface for different data types

• Abstraction: hiding the complex implementation details and showing only the necessary features of an object

Program to find factorial

• Use a loop to iterate from 1 to the given number

• Multiply each number with the previous result

• Return the final result

Polymorphism is the ability of an object to take on many forms. It allows objects of different classes to be treated as the same type.

• Polymorphism is a fundamental concept in object-oriented programming.

• It enables code reusability and flexibility.

• Polymorphism can be achieved through method overriding and method overloading.

• Example: A parent class 'Animal' can have multiple child classes like 'Dog', 'Cat', and 'Bird'. They can all be treated as 'Animal' objects.

• Polymorphism al...read more

Implemented automated test scripts using Selenium WebDriver for regression testing of web application.

• Used Selenium WebDriver to automate test cases

• Created test scripts in Java programming language

• Executed test scripts on different browsers like Chrome, Firefox, and Safari

• Performed regression testing to ensure the stability of the web application