kotlin-stdlib/kotlin.collections/sortedMapOf

sortedMapOf

fun <K : Comparable<K>, V> sortedMapOf(vararg pairs: Pair<K, V>): SortedMap<K, V>

Returns a new SortedMap with the specified contents, given as a list of pairs where the first value is the key and the second is the value.

The resulting SortedMap determines the equality and order of keys according to their natural sorting order.

Samples

import samples.*
import kotlin.test.*
import java.util.*
fun main() { 
   //sampleStart 
   val map = sortedMapOf(Pair("c", 3), Pair("b", 2), Pair("d", 1))
assertPrints(map.keys, "[b, c, d]")
assertPrints(map.values, "[2, 3, 1]") 
   //sampleEnd
}

fun <K, V> sortedMapOf(comparator: Comparator<in K>, vararg pairs: Pair<K, V>): SortedMap<K, V>

Returns a new SortedMap with the specified contents, given as a list of pairs where the first value is the key and the second is the value.

The resulting SortedMap determines the equality and order of keys according to the sorting order provided by the given comparator.

Since Kotlin

1.4

Samples

import samples.*
import kotlin.test.*
import java.util.*
fun main() { 
   //sampleStart 
   val map = sortedMapOf(compareBy<String> { it.length }.thenBy { it }, Pair("abc", 1), Pair("c", 3), Pair("bd", 4), Pair("bc", 2))
assertPrints(map.keys, "[c, bc, bd, abc]")
assertPrints(map.values, "[3, 2, 4, 1]") 
   //sampleEnd
}