Quiz: Nullability
Test your understanding of the concepts discussed in the Nullability chapter.
We'll cover the following...
We'll cover the following...
Technical Quiz
1.
What is the output of the following Kotlin program?
fun main() {
var a: String? = null
println(a?.length)
}
A.
null
B.
0
C.
NullPointerException
D.
UninitializedPropertyAccessException
1 / 5
...