Kotlin Programming MCQ for Competitive Exams, Interviews, and Certifications

A. Checked exceptions

B. Null pointer exceptions

C. Extension functions

D. Multiple inheritance

A. Kotlin does not allow null values

B. Kotlin uses the ! operator to denote nullability

C. Kotlin uses the ? operator to denote nullability

D. Kotlin uses the ?? operator to denote nullability

A. Kotlin's type system is similar to Java's

B. Kotlin's type system is more strict than Java's

C. Kotlin's type system is less strict than Java's

D. Kotlin's type system does not allow inheritance

A. It is similar to the switch statement in Java

B. It is used to declare variables

C. It can only be used with Boolean values

D. It is used to handle exceptions

A. /* Comment */

B. // Comment

C. # Comment

D. None of these

A. To create a new instance of a class

B. To modify the properties of an existing instance of a class

C. To perform mathematical calculations

D. To perform a null-check and execute code only if the value is not null

A. TRUE

B. FALSE

A. They must implement the Serializable interface

B. They are final by default and cannot be extended

C. They cannot have any properties

D. They must implement the equals() and hashCode() methods

A. To allow a function to be called recursively

B. To allow a function to be called from another module

C. To allow a function to be inlined at the call site

D. To allow a function to be declared as private

A. final

B. open

C. closed

D. None of these