Sort an Array in Kotlin
To sort an Array in ascending order in Kotlin, you can use Array.sort() function. Call the sort() function on the given array, and the function sorts the Array in-place in ascending order.
The syntax to sort the Array arr in ascending order is
arr.sort()To sort an Array in descending order in Kotlin, you can use Array.sortDescending() function. Call the Array.sortDescending() function on the given array, and the function sorts the Array in-place in descending order.
The syntax to sort the Array arr in descending order is
arr.sortDescending()Examples
Sort integer Array in ascending order
In the following program, we take an Arrays of integers: nums. Sort this Array in ascending order using Array.sort() function.
Kotlin Program
fun main(args: Array<String>) {
var nums = arrayOf(5, 1, 8, 3, 7, 9, 4)
nums.sort()
println(nums.contentToString())
}Output
[1, 3, 4, 5, 7, 8, 9]Sort integer Array in descending order
In the following program, we take an Arrays of integers: nums. Sort this Array in descending order using Array.sortDescending() function.
Kotlin Program
fun main(args: Array<String>) {
var nums = arrayOf(5, 1, 8, 3, 7, 9, 4)
nums.sortDescending()
println(nums.contentToString())
}Output
[9, 8, 7, 5, 4, 3, 1]