You might like to know<\/p>\n
Create an auto-grading quiz\/assessment without any coding – try OnlineExamMaker today<\/a>!<\/p>\n<\/div>\n 1. What is Kotlin primarily designed for? 2. Who developed the Kotlin programming language? 3. Which virtual machine does Kotlin target for execution? 4. What is the level of Kotlin’s interoperability with Java? 5. What does Kotlin’s “null safety” feature address? 6. What keyword is used to declare a variable as nullable in Kotlin? 7. What is the default visibility modifier for top-level declarations in Kotlin? 8. Which Kotlin feature is used to automatically generate useful methods like `equals()`, `hashCode()`, and `toString()` for data classes? 9. What is the keyword used to define an extension function in Kotlin? 10. What is the purpose of Kotlin’s `let` function? 11. What is the correct syntax to define a lambda expression in Kotlin? 12. In Kotlin, what does the `lateinit` modifier do when applied to a property? 13. Which Kotlin keyword is used to declare a class that cannot be instantiated and may contain abstract properties and methods? 14. How do you define a secondary constructor in Kotlin? 15. In Kotlin, what does the “by” keyword do when used in a class declaration?Article outline<\/h3>\n
\n
![\"\"](\"https:\/\/onlineexammaker.com\/kb\/wp-content\/uploads\/2023\/08\/Kotlin.webp\")
<\/p>\nPart 1: 30 Kotlin quiz questions & answers<\/h3>\n
\n a) Web development
\n b) Mobile app development
\n c) Data analysis
\n d) Game development
\n Answer: b) Mobile app development<\/p>\n
\n a) Google
\n b) JetBrains
\n c) Apple
\n d) Microsoft
\n Answer: b) JetBrains<\/p>\n
\n a) .NET
\n b) JVM (Java Virtual Machine)
\n c) LLVM
\n d) V8 (JavaScript engine)
\n Answer: b) JVM (Java Virtual Machine)<\/p>\n
\n a) Partially interoperable
\n b) Not interoperable
\n c) Fully interoperable
\n d) Interoperable only with Android projects
\n Answer: c) Fully interoperable<\/p>\n
\n a) Memory leaks
\n b) Lack of proper documentation
\n c) NullPointerExceptions (NPEs)
\n d) Slow performance
\n Answer: c) NullPointerExceptions (NPEs)<\/p>\n
\n a) null
\n b) void
\n c) nullable
\n d) ?
\n Answer: d) ?<\/p>\n
\n a) private
\n b) public
\n c) protected
\n d) internal
\n Answer: b) public<\/p>\n
\n a) Data annotations
\n b) Smart casts
\n c) Extension functions
\n d) Data classes
\n Answer: d) Data classes<\/p>\n
\n a) fun
\n b) extension
\n c) extend
\n d) infix
\n Answer: a) fun<\/p>\n
\n a) To create a new variable
\n b) To define a constant value
\n c) To modify a variable’s value
\n d) To perform a series of operations on a non-null object
\n Answer: d) To perform a series of operations on a non-null object<\/p>\n
\n a) lambda (x: Int) -> x * 2
\n b) {x: Int -> x * 2}
\n c) (x: Int) -> {x * 2}
\n d) (x: Int) => x * 2
\n Answer: b) {x: Int -> x * 2}<\/p>\n
\n a) It delays the initialization of the property until it is accessed for the first time.
\n b) It allows the property to be assigned a value only once.
\n c) It marks the property as mutable.
\n d) It ensures that the property is always initialized with a non-null value.
\n Answer: a) It delays the initialization of the property until it is accessed for the first time.<\/p>\n
\n a) final
\n b) open
\n c) abstract
\n d) sealed
\n Answer: c) abstract<\/p>\n
\n a) constructor()
\n b) init()
\n c) secondary()
\n d) constructor(args: String)
\n Answer: d) constructor(args: String)<\/p>\n
\n a) It specifies a superclass for the class.
\n b) It delegates the implementation of an interface to another object.
\n c) It defines a class property.
\n d) It specifies an extension function for the class.
\n Answer: b) It delegates the implementation of an interface to another object.<\/p>\nPart 2: Download Kotlin questions & answers for free<\/h3>\n