What is the role of a CoroutineContext?
CoroutineContext
Stores the data shared between coroutines
Handles exceptions thrown within a coroutine
Manages the execution order of coroutines
Provides information and settings for a coroutine
How do you define a suspending function in Kotlin?
By using the suspend keyword in the function definition
suspend
By implementing the Suspendable interface
Suspendable
By annotating the function with @Coroutine
@Coroutine
By extending the CoroutineScope interface
CoroutineScope
How does a suspending function differ from a regular function in Kotlin?
Suspending functions are deprecated and should be replaced with regular functions.
Suspending functions can be paused and resumed, allowing for non-blocking asynchronous operations.
Suspending functions cannot return values, while regular functions can.
Suspending functions are executed on separate threads, while regular functions run on the main thread.
How do you replace all occurrences of a substring in a Kotlin String?
replaceAll()
switch()
substitute()
replace()
What is the primary purpose of extension functions in Kotlin?
To add new functionality to existing classes without inheriting from them.
To define static methods within a class.
To override existing methods of a class.
To create abstract methods that must be implemented by subclasses.
What is the primary risk associated with using the !! operator in Kotlin?
!!
It can lead to NullPointerExceptions if the variable is null.
It can lead to memory leaks.
It slows down the execution of the program.
It makes the code less readable.
What is the purpose of type-safe builders in Kotlin?
To create generic type aliases for improved code readability.
To cast types safely within a given scope.
To enforce type safety at compile time when creating complex structures.
To build type hierarchies dynamically at runtime.
In Kotlin, what keyword is used to mark a class as inheritable?
inherit
open
derivable
extends
Which function is used to launch a new coroutine in Kotlin?
launch
async
runBlocking
withContext
Which function type represents a function that takes an Int and returns a String?
(Int) -> Unit
Int.() -> String
(Int) -> String
String(Int)