Android

Have you created a multithreaded program in Java?

Can you explain what a constraint barrier element in ConstraintLayout is and what it is used for?

What operations can be performed when working with exceptions in Kotlin?

Are permissions required to create new files in the Android operating system?

What distinguishes the invalidate and requestLayout methods in Android UI updates?

Junior — Middle

Joy DevДзен

Why is the String class in Java not considered a primitive type?

Can you explain the concept of Single Activity in the context of mobile app development?

How does the onMeasure method get called in the View component in Android?

Can you explain what CoroutineScope is and why it is needed in Kotlin?

Junior — Middle

Ozon FreshJoy DevIBS

Have you used the Thread class object to perform parallel tasks in Java?

Can you explain the concept of automata and how it is used in programming?

After rendering is complete, to which method is control passed for displaying the View?

Can you explain how the Continuation mechanism works internally and how it is implemented at the system level?

What is the difference between Dispatchers in Kotlin coroutines?

Junior — Middle

СитиДрайвПлатформа ТримJoy Dev

What was your first experience in development and how did you reach your current level of professionalism?

Can you explain what mutableStateOf in Jetpack Compose is and how it is used to manage UI state?

What is the difference between using theme and style when developing an interface in Android?

Explain the working principle of the subscribeOn method and in what situations it is used in reactive programming?

Junior — Middle

ЯндексJoy Dev

When exactly does the onAttachedToWindow event trigger for a View element in Android?

What is the difference between declaring variables with 'var' and 'val' in Kotlin?