Barclays Senior Java Developer interview questions

1. Explain the coin change sparing problem and improve the solution. 2. Java/Spring boot Question.

1. Correlation ID 2. Junit and mockito related questions - how to write test case for private methods. 3. Spring Scenario based questions 4. Java oops concepts 5. Stack and heap memory 6. Http Multipart request 7. http status Eg : what does status 204 means 8. Microservies 9. Jenkins - CI/CD process 10. Why equals and hashcode methods has to override? and internal working of hashmap