Why question mark (?) is used while assigning string to null? In Kotlin

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All Questions › Category: Kotlin › Why question mark (?) is used while assigning string to null? In Kotlin

0 Vote Up Vote Down

chetan shidling asked 5 years ago

fun main(args : Array<String>)
{
var str : String? = null
}

1 Answers

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chetan shidling answered 5 years ago

It is used to assign null to string. If we assign null to string without using a question mark then it will show an error.