Kotlin Beginner Quiz 2
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Quiz 2
1. How do you create an immutable list of names?
listOf('A', 'B')
mutableListOf('A', 'B')
arrayListOf('A', 'B')
2. Where is the primary constructor of a Kotlin class declared?
Inside the class body
In a companion object
In the class header
3. What is the name of the '?:' operator?
Safety operator
Elvis operator
Ternary operator
4. Which block is used for code that should run during class initialization?
init {}
constructor {}
start {}
5. How do you create a range of numbers from 1 to 5?
1 to 5
range(1, 5)
1..5
6. What is the default name for the single parameter of a lambda?
this
it
param
7. What is the standard file extension for Kotlin source files?
.kt
.kts
.kot
8. How do you create an array of integers?
int[] {1, 2}
IntArray(1, 2)
arrayOf(1, 2)
9. What is the entry point of a Kotlin program?
start()
main()
entry()
10. How do you write a single-line comment in Kotlin?
// comment
# comment
-- comment
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