How to Convert List into ArrayList in Kotlin-CodePudding

[ [Data(name1, good) ,Data(name2,good)] , [Data(name2,good), Data(name2,bad)] ]

How to convert this List into ArrayList please?

CodePudding user response：

var list = [ [Data(name1, good) ,Data(name2,good)] , [Data(name2,good), Data(name2,bad)] ]

var arraylist = ArrayList(list)

CodePudding user response：

Well first, that is not how to define a list in Kotlin. Since there are no list literals in Kotlin.

Instead, it's like listOf(1, 2, 3, 4,) for a normal list, and mutableListOf(1, 2, 3, 4,) for a mutable (editable) list.

MutableList is basically an ArrayList in Kotlin. But there is still arrayListOf() in Kotlin.

There is also toMutableList() extension to most Collection subclasses in Kotlin