Mphasis Interview Questions, Process, and Tips for Freshers

Inheritance is a mechanism in object-oriented programming where a new class is created by inheriting properties of an existing class.

• Inheritance allows code reusability and saves time and effort in writing new code.

• The existing class is called the parent or base class, and the new class is called the child or derived class.

• The child class inherits all the properties and methods of the parent class and can also add its ...read more

Abstraction is the process of hiding complex implementation details and exposing only the necessary information.

• Abstraction is a way to manage complexity by breaking down a system into smaller, more manageable parts.

• It allows us to focus on the essential features of a system while ignoring the non-essential details.

• Abstraction can be achieved through the use of interfaces, abstract classes, and encapsulation.

• For exampl...read more

Spring Boot is an opinionated framework that simplifies Spring development.

• Spring Boot provides auto-configuration and embedded servers.

• Spring Boot reduces boilerplate code and configuration.

• Spring Boot is ideal for microservices and standalone applications.

• Spring provides a more flexible and customizable framework.

• Spring requires more configuration and setup.

• Spring is ideal for large-scale enterprise applications.

Microservice architecture is a software design pattern where an application is divided into small, independent services.

• Benefits of microservice architecture:

• - Scalability: Each service can be scaled independently, allowing for better performance and resource utilization.

• - Flexibility: Services can be developed, deployed, and updated independently, enabling faster development cycles.

• - Fault isolation: If one service fa...read more

Java 8 introduced new features like lambda expressions, functional interfaces, and Stream API.

• Lambda expressions allow functional programming in Java.

• Functional interfaces are interfaces with a single abstract method.

• Stream API provides a functional way of processing collections.

• Default methods allow adding new methods to interfaces without breaking existing implementations.

• Date and Time API provides a more comprehensi...read more

Explaining marker interfaces, Singleton design pattern, and immutability of strings

• Marker interfaces are interfaces with no methods, used to mark a class as having a certain behavior or capability

• Singleton design pattern ensures only one instance of a class is created and provides a global point of access to it

• Strings are immutable in Java to ensure their values cannot be changed once created, which improves security a...read more