Kotlin Skill Assessment
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Kotlin MCQ
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Free Sample Questions for Kotlin
You have created a class that should be visible only to the other code in its module. Which modifier do you use?
Internal
Private
Public
Protected
Answer:
Internal
Which line of code is a shorter, more idiomatic version of the displayed snippet? val len: Int = if (x != null) x.length else -1
Val len = x?.let{x.len} else {-1}
Val len = x!!.length ?: -1
Val len:Int = (x != null)? x.length : -1
Val len = x?.length ?: -1
Answer:
Val len = x?.length ?: -1
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