how to declare nullable list

Question

i have to declare a class parameter of type nullable list(contaning String) with list default value= null

data class Riga(
var frase1 : List?<String>= null
)

this is raising:

Property getter or setter expected 

One type argument expected for interface List<out E>

You have to define the type (`List`), then add a question mark (`?`) to the end. `List?` look at the [null safety](https://kotlinlang.org/docs/reference/null-safety.html) documentation — Lionel Briand, Nov 13 '19 at 18:47

score 1 · Accepted Answer · answered Nov 13 '19 at 18:55

1

var frase1 : List<String>? = null

answered Nov 13 '19 at 18:55

wseme

1 Answers1