Kotlin Basic QuizBy Parvesh Sandila / September 15, 2023 Welcome to your Kotlin Basic Questions Name Email 1. What is the entry point of a Kotlin program? start() function main() function execute() function run() method None 2. What is the range operator used to create a range of numbers in Kotlin? -- .. -> :: None 3. How do you declare a nullable variable in Kotlin? Using the # symbol Using the ? operator Using the ! operator Using the * symbol None 4. In Kotlin, what keyword is used to declare a function? fun method proc func None 5. What does the following Kotlin program do? fun main() { var n = 10 var factorial = 1 while (n > 0) { factorial *= n n-- } println(factorial)} Prints the numbers from 10 to 1 in reverse order. Calculates the sum of the first 10 numbers. Prints the first 10 prime numbers. Calculates the factorial of 10. None 6. Given the following Kotlin program, what will be the value of result? val x = 5val y = 3val result = x * y 15 3 53 8 None 7. How can you define a read-only property in Kotlin? Using the "readonly" keyword Using the "get" keyword Using the "var" keyword Using the "val" keyword None 8. 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 9. In Kotlin, what is the purpose of the "fun" keyword? It defines a new data type It specifies a variable's data type It stands for "funny" It declares a function None 10. Which Kotlin feature helps prevent null pointer exceptions? Unicorn operator (->>) Arrow operator (->) Elvis operator (?:) Star operator (*) None 11. What is the Kotlin equivalent of a "for loop" in other programming languages? repeat loop foreach loop while loop for-in loop None 12. In Kotlin, which collection type represents an ordered list of elements? Map Array List Set None 13. In Kotlin, which keyword is used to declare a variable that cannot be reassigned? var val let const None 14. 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. 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, None 15. 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 10 25 30 15 None 1 out of 15