What is the purpose of the withContext function in Kotlin coroutines?
withContext
Executes a block of code with a specified CoroutineContext.
CoroutineContext
Creates a new CoroutineScope.
CoroutineScope
Launches a new coroutine on the main thread.
Cancels all coroutines within a specific scope.
Which of the following functions is NOT automatically generated for a data class in Kotlin?
run()
toString()
equals()
copy()
What is the purpose of type-safe builders in Kotlin?
To build type hierarchies dynamically at runtime.
To enforce type safety at compile time when creating complex structures.
To cast types safely within a given scope.
To create generic type aliases for improved code readability.
What is the process of a subclass providing a specific implementation for a method declared in its superclass called?
Encapsulating
Overriding
Overloading
Abstracting
What is the purpose of the StringBuilder class in Kotlin?
StringBuilder
To efficiently build mutable strings.
To perform regular expression matching.
To convert between different string encodings.
To create immutable strings.
Which of the following is NOT a valid way to handle a potential NullPointerException in Kotlin?
Using the let function to execute code only if the variable is not null.
let
Using the safe call operator ?.
?.
Performing a null check using an if statement.
if
Using the Elvis operator ?: to provide a default value if the variable is null.
?:
What happens when a coroutine encounters a suspending function?
The coroutine suspends execution at the suspending function call, allowing other work to happen on the thread.
The coroutine throws an exception because suspending functions are not allowed.
The suspending function is executed in a separate thread, running concurrently with the coroutine.
The coroutine blocks the thread until the suspending function completes its operation.
What is a key characteristic of a higher-order function in Kotlin?
It cannot be used with lambda expressions.
It operates on primitive data types only.
It always throws exceptions.
It can accept functions as parameters or return a function.
What is the role of a CoroutineContext?
Provides information and settings for a coroutine
Handles exceptions thrown within a coroutine
Manages the execution order of coroutines
Stores the data shared between coroutines
Which of the following is NOT a standard coroutine builder in Kotlin?
async
launch
repeat
runBlocking