How to initialize List in Kotlin?

Question

I see Kotlin has a List collection and I was wondering about different ways to initialize one. In Java, I could write:

List geeks = Ar         


        

Answer 1

Let me explain some use-cases : let's create an immutable(non changeable) list with initializing items :

val myList = listOf("one" , "two" , "three")

let's create a Mutable (changeable) list with initializing fields :

val myList = mutableListOf("one" , "two" , "three")

Let's declare an immutable(non changeable) and then instantiate it :

lateinit var myList : List
// and then in the code :
myList = listOf("one" , "two" , "three")

And finally add some extra items to each :

val myList = listOf("one" , "two" , "three")
myList.add() //Unresolved reference : add, no add method here as it is non mutable 

val myMutableList = mutableListOf("one" , "two" , "three")
myMutableList.add("four") // it's ok