They are asked so many questions. totally on complete Java and spring.
Java Software Engineer Interview Questions
3,070 java software engineer interview questions shared by candidates
ioc, dependency injection. And few question on kafka.
Spring Boot service with REST API and a problem-solving task.
They asked all the questions which a good product based will ask but they can't pay you
1. Can you brief me your technical skill 2. Knowledge of Java8 3. Explain me java8 features? 4. What is functional interface? 5. @functionalInterface is mandatory? 6. Optiponal classes in java8? 7. Streams? 8. What is the diff bet JDK, JRE, JVM? 9. Can we do java compilation in JRE 10. Where do we java compilation? 11. Diff bet String n StringBuilder? 12. StringBuffer ? 13. Diff bet Arraylist n LinkedList?
Rotate an array. implement minimum queue at O(1).
What options do you have to scale an SQL database?
Lots of questions about concurrent and multithreaded programming, rece conditions, deadlock and optimization of relational databases.
Collection framework basic questions
java design patterns(only names), rest api(construction of rest uri), differnce between bean factory and application context in spring. if u have lot of data which ds will you use to save it..
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