Core Java questions
Revise syntax, memory, strings, exceptions, collections, generics, concurrency, and modern Java features.
Interview preparation
Prepare with clarity.
Answer with confidence.
Use a structured Java interview preparation path covering fundamentals, backend engineering, projects, and system design—not memorized answers alone.
Core Java questionsRevise syntax, memory, strings, exceptions, collections, generics, concurrency, and modern Java features.
OOP and designExplain abstraction, inheritance, polymorphism, SOLID thinking, composition, and common design patterns.
SQL and persistencePractice joins, indexes, transactions, JDBC, JPA, Hibernate, query performance, and data modeling.
Build your foundation
Practical knowledge.
Clear next steps.
OOP and design
Explain abstraction, inheritance, polymorphism, SOLID thinking, composition, and common design patterns.
SQL and persistence
Practice joins, indexes, transactions, JDBC, JPA, Hibernate, query performance, and data modeling.
Spring Boot
Prepare for dependency injection, REST APIs, validation, security, testing, configuration, and deployment.
Microservices and Kafka
Discuss service boundaries, messaging, resilience, observability, retries, and event-driven architecture.
Project and system design
Learn to explain trade-offs, architecture, scaling, caching, APIs, and the projects in your portfolio.
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