Which method adds an element to the end of a mutable list in Kotlin?
push()
append()
add()
insert()
What is the output of the following Kotlin code?
fun main() { val result = add(3, 5) println(result) } fun add(a: Int, b: Int): Int = a + b
Error
5
3
8
What is the output of the following Kotlin code snippet?
val x = 5 if (x > 10) { println("Greater than 10") } else if (x < 10) { println("Less than 10") } else { println("Equal to 10") }
Greater than 10
Equal to 10
The code will not compile
Less than 10
What is the purpose of the 'when' statement in Kotlin?
To declare a variable
To execute a block of code repeatedly
To perform different actions based on different conditions
To define a function
What is the primary constructor in Kotlin?
A constructor declared inside the class body.
A constructor declared using the 'constructor' keyword.
The constructor defined within the class header.
Kotlin doesn't have constructors.
How do you exit a loop prematurely in Kotlin?
Using the 'return' keyword
All of the above
Using the 'break' keyword
Using the 'continue' keyword
Which keyword is used to declare a class in Kotlin?
object
interface
class
struct
What is the correct way to create a range of integers from 1 to 5 (inclusive) in Kotlin?
1..5
range(1, 5)
[1, 2, 3, 4, 5]
1 to 5
What is the most appropriate collection type in Kotlin to store a list of unique user IDs?
Map
List
MutableList
Set
What is the correct way to print 'Hello, World!' to the console in Kotlin?
System.out.println("Hello, World!")
console.log("Hello, World!")
print("Hello, World!")
println("Hello, World!")