Kotlin Quiz - Find the Output

What is the output of the following code? fun square(num: Int): Int { return num * num } fun main() { val result = square(5) println("The square of 5 is: $result") }

• The square of 5 is: 10

• 25

• The square of 5 is: 25

• square(5)

What is the output of the following code? fun factorial(n: Int): Int { return if (n == 0) 1 else n * factorial(n - 1) } fun main() { val num = 5 val result = factorial(num) println("Factorial of $num is $result") }

• 120

• 25

• Factorial of 5 is 120

• 5

What is the output of the following code? fun add(a: Int, b: Int): Int = a + b fun calculate(x: Int, y: Int, operation: (Int, Int) -> Int): Int { return operation(x, y) } fun main() { val result = calculate(10, 5, ::add) println("Result: $result") }

• 10

• 15

• Result: 15

• Error

What is the output of the following code? fun main() { val square = { x: Int -> x * x } val result = square(6) println("Square is: $result") }

• 36

• 6

• Square is: 36

• Error

What is the output of the following code? inline fun greet(block: () -> Unit) { println("Before greeting") block() println("After greeting") } fun main() { greet { println("Hello, Nisha!") } }

• Before greeting Hello, Nisha! After greeting

• Hello, Nisha! After greeting

• Only Before greeting

• Compilation Error

What is the output of the following code? val age = 18 if (age < 13) { println("Child") } else if (age in 13..17) { println("Teenager") } else { println("Adult") }

• Teenager

• Adult

• Child

• Error

What is the output of the following code? val day = 3 when (day) { 1 -> println("Sunday") 2 -> println("Monday") 3 -> println("Tuesday") else -> println("Invalid day") }

• Monday

• Tuesday

• 3

• Invalid day

What is the output of the following code? for (i in 1..5) { if (i == 3) continue if (i == 5) break println(i) }

• 1 2 4

• 1 2

• 1 2 3 4

• 1 2 3 4 5

What is the output of the following code? class Student { var name: String = "" var age: Int = 0 fun displayInfo() { println("Name: $name") println("Age: $age") } } fun main() { val student1 = Student() student1.name = "Rahul" student1.age = 20 student1.displayInfo() }

• Rahul, 20

• Name: Rahul Age: 20

• Name Age

• displayInfo

What is the output of the following code? val squares = Array(5) { i -> i * i } println(squares.joinToString())

• 1, 4, 9, 16, 25

• 0, 1, 4, 9, 16

• [0, 1, 4, 9, 16]

• Error