Sr Java Entwickler Interview Questions

414 sr java entwickler interview questions shared by candidates

1. Explain Collection framework in Java? 2. Java 8 Features 3. Sorting array elements ( Based on Comparator & Comparable) 4. OOP Concepts 5. Array List vs Linked List 6. Sort map by value 7. Internal Working of HashMap 8. Serialization 9. map() vs flatmap() 10. Add elements of List of List using Steam API 11. IOC & Depenedncy Injection 12. What is profiles and actuators in Spring Boot? 13. @Controller vs @RestController 14. @Bean vs @Component 15. Explain Auto configuration and Dependency management feature in Spring Boot 16. Get nth highest salary from employee table
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Senior Software Engineer - Java

Interviewed at Hughes Systique

4
May 9, 2023

1. Explain Collection framework in Java? 2. Java 8 Features 3. Sorting array elements ( Based on Comparator & Comparable) 4. OOP Concepts 5. Array List vs Linked List 6. Sort map by value 7. Internal Working of HashMap 8. Serialization 9. map() vs flatmap() 10. Add elements of List of List using Steam API 11. IOC & Depenedncy Injection 12. What is profiles and actuators in Spring Boot? 13. @Controller vs @RestController 14. @Bean vs @Component 15. Explain Auto configuration and Dependency management feature in Spring Boot 16. Get nth highest salary from employee table

Question: Count the email domains List employees = new ArrayList<>(); employees.add(new Employee("A", "A@google.com")); employees.add(new Employee("b", "b@gmail.com")); employees.add(new Employee("C", "C@google.com")); employees.add(new Employee("D", "D@yahoo.com"));
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Senior Java Software Engineer

Interviewed at EPAM Systems

4
Jul 7, 2023

Question: Count the email domains List employees = new ArrayList<>(); employees.add(new Employee("A", "A@google.com")); employees.add(new Employee("b", "b@gmail.com")); employees.add(new Employee("C", "C@google.com")); employees.add(new Employee("D", "D@yahoo.com"));

Technical: Spring Boot questions, microservices, microservices system design, AWS cloud technologies questions mostly from my projects and how I used AWS in them. Horizontal vs vertical scaling, headless server. Behavioral: If a coworker always disagrees with you. How will you handle it? A project that you failed to deliver.
May 29, 2024

Technical: Spring Boot questions, microservices, microservices system design, AWS cloud technologies questions mostly from my projects and how I used AWS in them. Horizontal vs vertical scaling, headless server. Behavioral: If a coworker always disagrees with you. How will you handle it? A project that you failed to deliver.

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