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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 annotations have you used with SpringSecurity? What is @SpringBootApplication? What is @EnableAutoconfiguration What is @Component What is bean scope? How do you make a bean Singleton? What is lazy and eager initialization in singleton? What is double checked singleton? Why use double check? What is volatile keyword? What is chaining in Java 8? Given a string, print first non repetitive character using Java 8. Given a list of integers. Print non duplicate values using Java 8. How do you make system fault tolerant in micro services? What is fallback mechanism if service 1 is calling service 2 and service 2 is down. Kafka command to create, consume and product topic? What is synchronized hashmap? What is thread pooling? There is 50 tasks, we do not want to create 50 threads to do them. How to proceed? How to do memory management in java? What memory areas are available? new String vs string literal Static variables go in stack or on heap? Equals and hashcode method contract in HashMap?
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Senior Java Developer

Interviewed at OpenText

3.2★
Mar 30, 2023

What annotations have you used with SpringSecurity? What is @SpringBootApplication? What is @EnableAutoconfiguration What is @Component What is bean scope? How do you make a bean Singleton? What is lazy and eager initialization in singleton? What is double checked singleton? Why use double check? What is volatile keyword? What is chaining in Java 8? Given a string, print first non repetitive character using Java 8. Given a list of integers. Print non duplicate values using Java 8. How do you make system fault tolerant in micro services? What is fallback mechanism if service 1 is calling service 2 and service 2 is down. Kafka command to create, consume and product topic? What is synchronized hashmap? What is thread pooling? There is 50 tasks, we do not want to create 50 threads to do them. How to proceed? How to do memory management in java? What memory areas are available? new String vs string literal Static variables go in stack or on heap? Equals and hashcode method contract in HashMap?

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