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Java Lead Interview Questions
595 java lead interview questions shared by candidates
Interview Question relevant to the Job which we worked. 1.
1. System Design Youtube 2. Microservice communication (in depth) 3. Java Stream API 4. Handle duplicate call
Asked about current project and coding stuff
1. Difference between GET,PUT,POST 2. What is Docker? 3. Difference between pod and node 4. What is @ControllerAdvice? 5. What is Actuator? 6. What is ThreadPool 7. Implement multithreading using ExecutorService
They focused mainly on scalable Java backend architecture, microservices design, concurrency handling, performance optimization, system design decisions, and experience leading development teams in production environments.
Explain what are the features of Java 8
1. Remove second non repeating character from string using java 8 streams 2. What is eureka and feign 3. when will you use soap and when rest 4. disadvantages of rest apis 5. fail-fast and fail safe collections 6. idempotent methods in rest api
What are java 8 modules* (not java 8 features) Architecture of spring security
Only 2 technical rounds : 1. Stream API 2. Database connection with 2 Db in spring boot 3. Why spring boot ? 4. RequestMapping and jwt token 5. Comparator comparable 6. Map struct 7. DTO 8. System design : SAGA, strangler, Builder, SOLID principals
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