What is the purpose of the withContext function in Kotlin coroutines?
withContext
Creates a new CoroutineScope.
CoroutineScope
Executes a block of code with a specified CoroutineContext.
CoroutineContext
Cancels all coroutines within a specific scope.
Launches a new coroutine on the main thread.
Which keyword is used to declare a suspending function in Kotlin?
async
suspend
await
coroutine
How do type-safe builders contribute to code correctness?
By automatically generating unit tests for complex structures.
By preventing invalid states from being represented in the code.
By optimizing the performance of code that manipulates large datasets.
By enabling dynamic code execution at runtime.
Can a sealed class be instantiated directly in Kotlin?
Yes, just like regular classes.
Yes, but only inside the same file where it's defined.
Only if the sealed class is declared as open.
open
No, sealed classes cannot be instantiated directly.
Which function is used to launch a new coroutine in Kotlin?
runBlocking
launch
What is a higher-order function in Kotlin?
A function that takes another function as a parameter or returns a function.
A function that is declared using the inline keyword.
inline
A function that operates on collections and sequences.
A function that cannot be overridden in a subclass.
How do you replace all occurrences of a substring in a Kotlin String?
replace()
substitute()
switch()
replaceAll()
What is a potential risk of using recursion without a proper base case?
It makes the code less readable and harder to understand.
It prevents the function from returning any value.
It can lead to an infinite loop and a StackOverflowError.
It forces the use of tail recursion optimization.
What is the purpose of the CoroutineContext?
Serializes data passed between coroutines.
Defines the entry point for a coroutine.
Synchronizes access to shared resources.
Stores information about the coroutine's execution environment.
What annotation must be added to a method in the superclass to allow it to be overridden in a subclass?
@Override
@Open
@Overrideable
@Abstract