OOP, low latency, multithreading etc - nothing unusual except one thing. Dev asked me about method synchronization, so I said that synchronized is a one way (not that efficient, but a way), an he said that this is not enough, as I need to call notify() method!!! Guys, this was the most insane what I heard during interview. After that I suggested to finish the interview as there is a gap between mine and his knowledge. If you are smart, and you know your value, don't go there, wasted time.
What happens to a stream if you never call a final operation?
What is HashMap? What is hash collision?
Java SE syntax Q&A list
1. Personal projects (5minutes) 2. How you design a system with many transactions 3. Anagrams 4. Nothing related to best practices, rest, architecture, Spring
Asked about Java SE questions like for the Java certification
(Whiteboard) Describe your current project architecture and questions around that.
Scrivere un modello di dominio Code review Agile
[technical] Describe the Throwable class hierarchy
How hash map works internally
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