Top 50 Java Interview Questions for Freshers (2026 Edition)

If you're preparing for Java developer interviews in Chennai, this list is built from real interview rounds our students attended across TCS, Infosys, Zoho, Freshworks and 100+ hiring partners.

Core Java fundamentals

Expect the first 10 minutes to test OOP concepts, JVM internals, String pool, and the difference between == and equals(). Be ready to write small code on paper.

Collections & Streams

Know when to use HashMap vs TreeMap, fail-fast vs fail-safe iterators, and at least 5 Stream API operations with examples.

Spring Boot questions

Bean scopes, dependency injection, @Transactional behaviour, and how you'd design a REST API with proper layering.

System design at fresher level

Most Chennai interviews now ask one design question even for freshers — usually URL shortener or rate limiter. Practice both.