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Senior Java Developer Interview Questions

"Senior developers have years of experience in Java and have the knowledge and communication skills to mentor other developers. Companies prioritize strong technical skills and questions will focus on problem solving and critical thinking. A bachelor's degree in computer science or a related field, along with years of industry experience are standard."

5,296 senior java developer interview questions shared by candidates

What is Spring Boot and what are its main advantages? How does Spring Boot simplify the development of Java applications? Explain the significance of the @SpringBootApplication annotation. What are Spring Boot Starters and how do they benefit development? Explain the concept of auto-configuration in Spring Boot. How can you customize the default behavior of Spring Boot (e.g., changing the default port)? What are embedded servers in Spring Boot and which ones are commonly used? Can you create a non-web application using Spring Boot? Explain the concept of profiles in Spring Boot. How does Spring Boot support asynchronous processing (e.g., using @Async)? What is Spring Security and how do you integrate it with Spring Boot? Explain the role of @Primary and @Qualifier in bean selection. What is a Circuit Breaker and how can it be implemented in Spring Boot? How does Spring Boot handle logging?
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Senior Java Developer

Interviewed at Subex

3.6★
Sep 13, 2025

What is Spring Boot and what are its main advantages? How does Spring Boot simplify the development of Java applications? Explain the significance of the @SpringBootApplication annotation. What are Spring Boot Starters and how do they benefit development? Explain the concept of auto-configuration in Spring Boot. How can you customize the default behavior of Spring Boot (e.g., changing the default port)? What are embedded servers in Spring Boot and which ones are commonly used? Can you create a non-web application using Spring Boot? Explain the concept of profiles in Spring Boot. How does Spring Boot support asynchronous processing (e.g., using @Async)? What is Spring Security and how do you integrate it with Spring Boot? Explain the role of @Primary and @Qualifier in bean selection. What is a Circuit Breaker and how can it be implemented in Spring Boot? How does Spring Boot handle logging?

Data Structures & Algorithms: Problems to test understanding and application of DS & Algos. Core Java Concepts: Questions on Java basics, OOP principles, Java Collections, Exceptions, Threads, etc. Java EE and Frameworks: If the role demands, questions might revolve around Spring, Hibernate, Web Services (REST, SOAP)
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Senior Java Developer

Interviewed at Endava

3.5★
Oct 9, 2023

Data Structures & Algorithms: Problems to test understanding and application of DS & Algos. Core Java Concepts: Questions on Java basics, OOP principles, Java Collections, Exceptions, Threads, etc. Java EE and Frameworks: If the role demands, questions might revolve around Spring, Hibernate, Web Services (REST, SOAP)

Tell me about your self, 1. can we make interface final 2. spring boot internal configuration 3. class loader 4. hashmap internal implementation 5. object class methods 6. get and load method difference in hibernate 7. final keyword 8. super keyword 9. abstract method and interface and abstract class real time scenario 10. jvm way of working 11. @accept annotation 12. real time hashmap scenario 13. hashmap bucket creating and load factor 14. thread class and runnable interface 15. how to use two database in spring boot 16. reverse a integer value 123456 17. sum of integer value 1234758 18. how @springbootapplication annotation works 19. cache and how to use second level cache. 20. @componentScan annotation uses 21. can we override constructor and why 22. Thread class and runnable interface. 23. rightJoin and leftJoin in mysql. 24. what is static block and why we use static block.
avatar

Senior Java Developer

Interviewed at NeoSOFT

3.6★
Dec 26, 2020

Tell me about your self, 1. can we make interface final 2. spring boot internal configuration 3. class loader 4. hashmap internal implementation 5. object class methods 6. get and load method difference in hibernate 7. final keyword 8. super keyword 9. abstract method and interface and abstract class real time scenario 10. jvm way of working 11. @accept annotation 12. real time hashmap scenario 13. hashmap bucket creating and load factor 14. thread class and runnable interface 15. how to use two database in spring boot 16. reverse a integer value 123456 17. sum of integer value 1234758 18. how @springbootapplication annotation works 19. cache and how to use second level cache. 20. @componentScan annotation uses 21. can we override constructor and why 22. Thread class and runnable interface. 23. rightJoin and leftJoin in mysql. 24. what is static block and why we use static block.

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