Sr Java Developer Interview Questions

5,581 sr java developer interview questions shared by candidates

OOPS concept Java8 features why notify wait notifyAll methods are from Object class? Dimond problem ? Can we override final method/class? What is Multithreading?Synchronization? primary annotation & qualifier annotation? Define a list and print the duplicate elements? What is immutable class, how can we create ?
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Sr Java Developer

Interviewed at Maxxton

3.7
Apr 17, 2023

OOPS concept Java8 features why notify wait notifyAll methods are from Object class? Dimond problem ? Can we override final method/class? What is Multithreading?Synchronization? primary annotation & qualifier annotation? Define a list and print the duplicate elements? What is immutable class, how can we create ?

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.
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Senior Java Developer

Interviewed at HSBC

3.8
Jun 14, 2018

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.

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