Beginner
Kotlin
Q3 / 100
What is the Kotlin keyword for declaring a nullable type?
Correct! Well done.
Incorrect.
The correct answer is B) ?
B
Correct Answer
?
Explanation
Appending ? to a type (e.g., String?) marks it as nullable, allowing null values. Without ?, Kotlin types are non-nullable by default.
Progress
3/100