What is default port of Oracle Database Angular inbuild directives. Java 8 features. Final method can be overloaded?
Sr Java Developer Interview Questions
5,288 sr java developer interview questions shared by candidates
What's difference between new and old Java memory management
1. Project Discussion: I was asked to explain the current architecture of my project. I spoke about our microservices-based payment platform using Spring Boot, Kafka, Redis, and PostgreSQL. 2. Deep Dive into Challenges: They asked about the most challenging issue I faced. I shared how we handled message duplication and retries when Kafka consumers failed and how we used Redis for idempotency. 3. Core Spring Concepts: Questions included: Scopes of Spring beans, Use of Prototype scope and related implementation, Common mistakes with Singleton beans, How to exclude packages from component scanning 4. Transaction Management: They asked about @Transactional and how Spring manages transactions under the hood. 5. JPA & Hibernate: Topics included: Features of JPA, Optimizing queries to prevent repetitive DB hits 6. Kafka Scenario-Based: A practical scenario: what to do when a Kafka producer fails. I explained storing failed messages, retry strategies, DB optimizations, and caching using Redis.
Questions are mainly on Core java for a Java Developer position.
Streams API collection.counting() Remove distinct one
Java programs and 1 sql query
1st round : Recruiter screening. 2nd round : Hiring Manager round, technical question around your project and experience, 3rd round: Coding exercise ( find duplicate characters in a string ) 4th round: System design
SQL question to display product_categories and quantities sold
Introduce myself and discuss aspects of skills and experiences in a period of my career
What are the types of component class?
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