Android

Explain the principle of functioning of viewModelScope in Android architecture

How to implement a notification system for the user after a successful file download?

How can a service be configured in a system?

How does using StateFlow differ from LiveData for observing data changes in an app?

Junior — Middle

Wildberries

Is the size of a LinkedList fixed or can it change dynamically?

Is it necessary to explicitly specify subclasses within a sealed class during declaration?

How to ensure the preservation of the current system state when changing configuration?

How are errors handled in Java and how should you work with them?

Can you name the types of messages that the BroadcastReceiver component in Android can handle?

How to distinguish a thread of execution from a coroutine and what are the main differences between them?

Junior — Middle

СБЕР

Explain why not all memory operations in an application are performed on the stack, and some are done on the heap.

Could you explain the principle of the volatile variable and in what cases its use is justified?

Junior — Middle

ПромсвязьбанкЯндексПСБ+7

What is the purpose of dividing collections in Kotlin into mutable and immutable types?

Junior — Middle

СБЕРМТС Линк

How to serialize an object of your class if one of its fields is not serializable?

What is an iterator?

Which team role suits you best and why?

Can you explain what the OkHttp library is and what it is used for in application development?

Have you had experience working with the Room library for data processing in Android applications?

Junior — Middle

SM LabПервый битNetUP

How to prevent receiving updates after calling the onStop method in the component's lifecycle?

What are the reasons to choose paging by message date and what are its advantages?