Programming Interview Questions

Clear, beginner friendly answers to the most asked programming interview questions. Every answer is written to help you explain the concept confidently in a real interview.

102 questions across 8 topics and growing

Object Oriented Programming

Beginner friendly OOP interview questions with simple explanations, real examples, and the exact points interviewers want to hear.

10 questions· 0 done

Data Structures and Algorithms

Beginner friendly DSA interview questions on arrays, linked lists, trees, sorting, and Big O, each answered in plain language with code.

15 questions· 0 done

Java

Common Java interview questions explained simply, covering the JVM, collections, strings, exceptions, and OOP in Java with clear examples.

15 questions· 0 done

SQL

Beginner friendly SQL interview questions on joins, keys, indexes, grouping, and normalisation, each with a simple query example.

14 questions· 0 done

C++

C++ interview questions made simple, covering pointers, references, memory, the STL, and OOP in C++ with short, clear code examples.

12 questions· 0 done

Spring Boot

Spring Boot interview questions explained for beginners, covering dependency injection, annotations, REST APIs, and auto configuration.

12 questions· 0 done

API Design

API design interview questions in plain language, covering REST, status codes, versioning, authentication, and idempotency with examples.

12 questions· 0 done

Cloud Computing

Beginner friendly cloud computing interview questions covering IaaS, scaling, load balancing, containers, and core AWS style concepts.

12 questions· 0 done