Majesco Senior Software Engineer Interview Questions and Answers

Java is a high-level programming language known for its portability, security, and object-oriented features.

• Java is platform-independent, meaning it can run on any device with a Java Virtual Machine (JVM).

• It is object-oriented, allowing for modular and reusable code.

• Java is known for its strong security features, such as sandboxing and encryption.

• It is widely used for developing web applications, mobile apps, and enter...read more

I delivered my code through version control systems like Git, following best practices for code review and testing.

• Used Git for version control to track changes and collaborate with team members

• Followed best practices for code review to ensure quality and consistency

• Implemented automated testing to catch bugs early and ensure code reliability

The team size is 10 members.

• The team consists of 2 senior engineers, 4 mid-level engineers, and 4 junior engineers.

• We follow an agile methodology with cross-functional teams.

• Regular team meetings and stand-ups ensure effective communication and collaboration.

Dependency injection is a design pattern in which components are given their dependencies rather than creating them internally.

• Dependency injection helps in achieving loose coupling between classes.

• It allows for easier testing by providing a way to mock dependencies.

• There are three types of dependency injection: constructor injection, setter injection, and interface injection.

Our current project architecture follows a microservices design pattern with Docker containers for scalability and flexibility.

• Microservices architecture

• Docker containers for scalability

• RESTful APIs for communication

• Kubernetes for orchestration

Hashmap is a data structure that stores key-value pairs and allows for fast retrieval of values based on keys.

• Hashmap uses a hash function to map keys to indices in an array.

• It allows for constant time complexity O(1) for insertion, deletion, and retrieval operations.

• In case of collisions, separate chaining or open addressing techniques are used to handle them.

• Example: HashMap<String, Integer> map = new HashMap&l...read more

Inheritance in Java allows a class to inherit properties and behavior from another class.

• Allows a class to inherit fields and methods from another class

• Promotes code reusability and reduces redundancy

• Uses the 'extends' keyword to establish a parent-child relationship

• Child class can access non-private members of the parent class

Interface in Java is a blueprint of a class that defines a set of methods without implementation.

• Interfaces can have abstract methods and constants

• Classes can implement multiple interfaces

• Interfaces are used for achieving abstraction and multiple inheritance

Collection framework in Java provides a set of interfaces and classes to store and manipulate groups of objects.

• Includes interfaces like List, Set, Map

• Classes like ArrayList, LinkedList, HashSet, HashMap

• Provides methods for adding, removing, and accessing elements

• Allows for easy iteration and manipulation of collections