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Senior Java Engineer Interview Questions
607 senior java engineer interview questions shared by candidates
what is generic in java, what is streams?
Whiteboard high level system design
1) Java 11, 17, and 21 features. 2) What is the use of Optional? 3) What are intermediate and terminal operations? 4) In an interface, what is the purpose of default and static methods? 5) What is the Builder pattern? 6) How do you create an immutable class? 7) How do you share requests from one microservice to another? 8) Write a program to find the 2nd largest numbers in an unsorted array without using an inbuilt sort function. 9) How can we restrict a list from being modified? 10) What is transient? 11) What is volatile? 12) put vs patch ?
None what I am allowed to disclose.
The second round was a live pair programming session on HackerRank. The task was to implement a Circuit Breaker pattern.
See the lengthy description above.
Question on Springs, Collection(HashMap), Concurrency, Singleton class etc.
Basically OOPs concepts on 1st round and Mostly questions on Design in 2nd round
Design a booking system to integrate with existing Revolut ecosystem.
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