Infosys Senior Software Engineer interview questions

actually planned 30 mins call but it extends around 50 mins lot of questions raised 1. Java 8 features 2. Completeablefeature 3. Interface vs Abstract class 4. Spring Boot Annotations 5. What is difference between @Controller vs Restcontroller 6. Find number times repeated word or char 7. Joins and difference 8. Why we use Hibernate 9. JPA usage 10.without JPA what happens to connect Hibernate 11. JVM 12. Static vs Final 13. Finalize() 14. How we can handle exception in spring boot 15. Spring bean life cycle and scope 16. Throw and throws, finally 17. Collections Map interface vs Hastable 18. How HashMap work internally 19. Multithreading 20. Angular SPA 21. Components type 22. Intersecptors 23. Subscribe and observable, subject, promise, then, next, complete, error usage 24. event handler usage 25. Pipe and how to create own pipe etc....

tell me something about yourself? brief introduction?