Interview Prep
Structured preparation for senior backend Java interviews. Covers core language, Spring ecosystem, system design, DSA, and behavioral questions — with detailed explanations and real code examples.
Java
Core language deep-dives: OOP, generics, concurrency, JVM internals, memory model, and collections.
Spring
Spring Core, Boot autoconfiguration, Data/JPA with Hibernate, and Security with JWT & OAuth2.
System Design
CAP theorem, consistency models, distributed patterns, and full design walkthroughs of real systems.
DSA
Algorithm patterns used in coding interviews — sliding window, BFS/DFS, DP — with Java examples.
Behavioral
STAR method framework and curated senior-level behavioral questions with example answer structures.
Quick Test
Test yourself on all topics. Reveal answers and rate yourself — tracks your score with a results screen.