How to get the key of an index in a TreeMap

Question

I want to get a key from it's index in a TreeMap. I can do this in Java Object firstKey = myMap.keySet().toArray()[index]; But how can I achieve the same in Kotlin?

Answer 1

You can achieve the same in Kotlin using map.keys.elementAt(index)

import java.util.TreeMap

fun main() {
   val index = 0
   val map = TreeMap<String, String>()
   map.put("1", "Test")
   map.put("2", "Test2")
   val obj = map.keys.elementAt(index)
   print(obj)
}