How to Sort an Array in Kotlin

How to Sort an Array in Kotlin ?

Answer

To sort an array in Kotlin, you can use the sortedArray() function for ascending order and sortedArrayDescending() function for descending order.

✐ Examples

1 Sort Integer Array in Ascending Order

In this example,

We create an integer array named numbers with values 5, 2, 8, 1, 6.
We use the sortedArray() function on the array to sort it in ascending order and store the sorted array in sortedNumbers variable.
The sortedArray() function sorts the array elements in ascending order.
Finally, we print the sorted array sortedNumbers to standard output.

Kotlin Program

fun main() {
    val numbers = intArrayOf(5, 2, 8, 1, 6)
    val sortedNumbers = numbers.sortedArray()
    println("Sorted array in ascending order: ${sortedNumbers.contentToString()}")
}

Output

Sorted array in ascending order: [1, 2, 5, 6, 8]

2 Sort Integer Array in Descending Order

In this example,

We create an integer array named numbers with values 5, 2, 8, 1, 6.
We use the sortedArrayDescending() function on the array to sort it in descending order and store the sorted array in sortedNumbers variable.
The sortedArrayDescending() function sorts the array elements in descending order.
Finally, we print the sorted array sortedNumbers to standard output.

Kotlin Program

fun main() {
    val numbers = intArrayOf(5, 2, 8, 1, 6)
    val sortedNumbers = numbers.sortedArrayDescending()
    println("Sorted array in descending order: ${sortedNumbers.contentToString()}")
}

Output

Sorted array in descending order: [8, 6, 5, 2, 1]

Summary

In this tutorial, we learned How to Sort an Array in Kotlin language with well detailed examples.

◀ Previous Next ▶

Kotlin Tutorials

Kotlin How-Tos

How to Sort an Array in Kotlin

How to Sort an Array in Kotlin ?

Answer

✐ Examples

1 Sort Integer Array in Ascending Order

Kotlin Program

Output

2 Sort Integer Array in Descending Order

Kotlin Program

Output

Summary

More Kotlin Arrays Tutorials