Started with a simple telephonic.

Simple Java questions. One mathematics question.

Then had second call, that guy was good but asked questions in frustrated way. But managed that.

Was off to next round where the onsite manager asked some random questions on project and why am I looking for change.

I think I did clear that, but salary demand was high.

So no offers.

After every 4 seconds a fresh series of no comes, we have to maintain the max element of every series and compare it with new".

Column based vs row based DB

Why we package one project in many jars

Java 8 atomicity. Auto increment in safe manner with use of locking or sync blocks.