The first round was an online test consisting of MCQs related to Core Java, Java EE, Multithreading, Hibernate, and so on.

The second round was a telephonic round that comprised OOPS concepts and some logical questions.

The third round was also initially scheduled to be a Skype call, but it later turned into a telephonic round, taken by a senior person. He was insanely rude, and I managed to answer them pretty well.

And later, they just hibernated themselves. I mailed them several times but had no luck; not even a single response came from their side. HR people should learn to inform candidates if they could not clear at any point.

Core Java, OOPS, Exception handling, finding a palindrome, etc.

How do you do unit testing? How do you do integration testing? Have you worked on Agile? Do you know about DevOps, etc.?