IBM

I was referred by a friend. The first round was a telephonic round where the interviewer asked me a simple code and inquired about my background. After clearing the telephonic round, I was asked to come onsite for three back-to-back interviews. The

I submitted multiple applications for various software development roles. About a month later, I received a call asking to set up a phone interview. It was a comprehensive interview with multiple team members, covering points on my resume, Java kno

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