HCLTech Java Full Stack Developer Interview Questions and Answers for Experienced

C# concepts including abstraction, interface, abstract method, abstract class, polymorphism, encapsulation, inheritance, and serialization.

• Abstraction: hiding implementation details

• Interface: defining a contract for behavior

• Abstract method: method without implementation

• Abstract class: class with one or more abstract methods

• Polymorphism: ability of objects to take on multiple forms

• Encapsulation: bundling data and behavi...read more

DBMS stands for Database Management System. It is a software system that allows users to define, create, maintain and control access to databases.

• DBMS is used to manage large amounts of data efficiently.

• It provides a way to store, retrieve and manipulate data in a structured manner.

• It ensures data integrity and security by providing access control and backup and recovery mechanisms.

• Examples of DBMS include MySQL, Oracl

There are various types of databases such as relational, NoSQL, graph, and document-oriented databases.

• Relational databases store data in tables with predefined relationships between them.

• NoSQL databases are non-relational and can handle unstructured data.

• Graph databases store data in nodes and edges, and are useful for complex relationships.

• Document-oriented databases store data in documents, similar to JSON objects.

• E...read more