Câu hỏi phỏng vấn Kotlin
Câu hỏi

What is the difference betwee...

Câu trả lời

The main difference between * (star projection) and Any in Kotlin generics is:

  • * is used to represent an unknown type parameter in a generic type. It is a wildcard type that can represent any type, but it cannot be used to create a new instance of the generic type. For example, Array<*> represents an array of unknown element type[1].

  • Any is the root of the Kotlin class hierarchy, similar to Object in other languages. It is the common supertype of every Kotlin type, including nullable types. `An...

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middle

How is it recommended to create constants in Kotlin?

middle

What is lateinit in Kotlin and when would you use it?

senior

Explain the difference between Inline classes vs type aliases

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