Android

What is the purpose of the Foreground service in Android and how is it used?

What are two exclamation marks used for in programming?

How can data be transferred from one Activity to another in Android?

How to implement dependency injection through context inside a ViewModel?

Junior — Middle

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What risks may arise when passing a lambda from Kotlin to a Java method?

Describe the principles of encapsulation, inheritance, polymorphism, and abstraction in object-oriented programming.

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How to create a singleton instance of a class in Android?

Which classes in Java provide socket functionality?

What is the difference between primitive and reference types?

What is the difference between signed and unsigned APK?

What do you consider to be quality code?

Where would you describe analytics before launching the application?

How do you use modifiers in your code?

Do you use resources or sources for finding new ideas and inspiration?

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Have you ever used Service in Android?

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Can an enumeration serve as a constraint for permissible states in a system?