The interviewer started with Java questions like error vs exceptions, volatile keyword and its use, and multithreading. He then asked a lot of kotlin questions and android questions for 1.5 hour. In the last 5 min, he asked me to write kotlin code to find list of duplicate elements in an array.
heap memory, Shared view model, thread safety, Sync, Set & Post, Raw query in Room DB, MVVM, Clean architecture, Code coverage, Jetpack components like Work manager, and View Model. Architecture patterns, Kotlin functions like higher-order, and inline.
1. Shortest distance - graph 2. Couroutine - concepts 3.MVP vs MVVM 4. Hilt/ Dagger 5. Network Interceptor
I liked the question on understanding the principles of floating point numbers.
-what is the difference between linkedlist and arraylist? -what is messagequeue? -write a unit test for simple method
what is Android build process
How important is a team for you?
They wanted to make sure that I'm eligible to work at Czech republic.
1.What is mediator live data? 2. How to write unit test for a private method? 3.When to use Dispatchers.default? 4.Android Services? 5.Advantage of Constraint Layout?
1st round was DSA round. It was a generic question to write a data structure with 3 functionality (add, remove, find random). 2nd question was related to a mathematic formula and i was asked to resolve it using coding (handling brackets for +- symbol). I was able to pass the 1st round, 2nd round was technical specific, in my case it was Android. The questions were simpler including lifecycle, viewmodel, jetpack etc. The 3rd round includes HM round, which was a combination of Behavioural and technical round. This lasts for 30 minutes. After this, recruiter informed me that some HR will contact and start the further process, but i never got any call.
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