Fa Software Services Interview Questions and Answers

A controller handles web requests, while a REST controller specifically manages RESTful API requests.

• A standard controller typically returns views (HTML) for web applications.

• A REST controller returns data in formats like JSON or XML, suitable for APIs.

• Example of a controller: @Controller in Spring MVC for rendering web pages.

• Example of a REST controller: @RestController in Spring Boot for building RESTful service...read more

An interface in Java is a collection of abstract methods and constants that can be implemented by a class.

• Interfaces define a contract that a class must implement

• Interfaces can be used to achieve abstraction and polymorphism

• A class can implement multiple interfaces

• Interfaces can have default methods and static methods since Java 8

OOPs in Java stands for Object-Oriented Programming which is a programming paradigm based on the concept of objects.

• OOPs is a way of programming that focuses on objects and their interactions

• It involves encapsulation, inheritance, and polymorphism

• Java is an object-oriented programming language that supports OOPs concepts

• Example: A car is an object that has properties like color, model, and methods like start, stop...read more

I am currently earning a salary of X per annum.

• My current CTC is based on my experience, skills, and market standards.

• I am open to discussing salary expectations for this role.

• I am looking for a fair compensation package that aligns with my expertise.

• I am willing to negotiate based on the overall package offered.

Collection is a framework in Java that provides an architecture to store and manipulate a group of objects.

• Collection interface is the root interface of the collection framework.

• List, Set, and Queue are the main sub-interfaces of Collection.

• ArrayList, LinkedList, HashSet, and TreeSet are some of the commonly used implementations of Collection.

• Collections class provides various utility methods to operate on Collect...read more