IBM

I applied in 2020. It was a face-to-face process with two technical rounds, followed by an HR round. The process was smooth, and the interview was easy. I received an offer the same day after discussion.

The interview process has two stages with two technical rounds. Both rounds feature detailed technical questions, including those related to previous work and generic topics. The Manager round covers both technical aspects and compensation.

Core Java & OOP What are the four pillars of Object-Oriented Programming? Can you explain each with examples? Difference between an abstract class and an interface? When do you use which one? What is polymorphism? Explain compile-time vs run-time