Oracle

The interview process was quick. I received a call from HR, who mentioned the first round, a telephonic interview. It covered data structures and a few basic algorithms. The second round was conducted on their office campus. I was asked about Java

First round of telephonic conversation, followed by extensive and in-depth face-to-face discussions.

There were a lot of rounds. I cleared till the 4th round, and still, a few more were left. Most of the rounds, they asked the same questions: singleton, threads, and the collection framework.