Kotlin Basic QuizBy Parvesh Sandila / September 15, 2023 Welcome to your Kotlin Basic Questions Name Email 1. In Kotlin, which collection type represents an ordered list of elements? Set Map Array List None 2. What is the range operator used to create a range of numbers in Kotlin? -> -- :: .. None 3. What is the Kotlin equivalent of a "for loop" in other programming languages? while loop repeat loop foreach loop for-in loop None 4. What is the output of the following Kotlin program? fun main() { var fib1 = 0 var fib2 = 1 for (i in 1..10) { print("$fib1, ") val next = fib1 + fib2 fib1 = fib2 fib2 = next }} 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, This program will not compile. 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, None 5. Given the following Kotlin program, what will be the value of max? val num1 = 10val num2 = 25val num3 = 15val max = if (num1 >= num2 && num1 >= num3) num1else if (num2 >= num1 && num2 >= num3) num2else num3 30 15 25 10 None 6. Which Kotlin feature helps prevent null pointer exceptions? Star operator (*) Elvis operator (?:) Unicorn operator (->>) Arrow operator (->) None 7. How do you declare a nullable variable in Kotlin? Using the * symbol Using the # symbol Using the ! operator Using the ? operator None 8. What is the output of the following Kotlin program? fun main() { var sum = 0 for (i in 1..10) { sum += i } println(sum) } 55 15 10 45 None 9. What does the following Kotlin program do? fun main() { var n = 10 var factorial = 1 while (n > 0) { factorial *= n n-- } println(factorial)} Calculates the factorial of 10. Calculates the sum of the first 10 numbers. Prints the first 10 prime numbers. Prints the numbers from 10 to 1 in reverse order. None 10. What is the entry point of a Kotlin program? run() method main() function execute() function start() function None 11. In Kotlin, what is the purpose of the "fun" keyword? It declares a function It defines a new data type It specifies a variable's data type It stands for "funny" None 12. What is the output of the following Kotlin program? fun main() { var a = 5 var b = 10 a = b.also { b = a } println("After swapping: a = $a, b = $b")} After swapping: a = 5, b = 10 After swapping: a = 0, b = 0 After swapping: a = 10, b = 5 This program will not compile. None 13. What is the output of the following Kotlin program? fun main() { val numbers = arrayOf(1, 2, 3, 4, 5) val sum = numbers.reduce { acc, num -> acc + num } println(sum)} 120 10 3 15 None 14. In Kotlin, what keyword is used to declare a function? fun method func proc None 15. Given the following Kotlin program, what will be the value of result? val x = 5val y = 3val result = x * y 15 8 53 3 None 1 out of 15