How to Sort a List in Kotlin - Step by Step Examples

How to Sort a List in Kotlin ?

Answer

To sort a list in Kotlin, you can use the sorted method for ascending order and the sortedDescending method for descending order. These methods are part of the Kotlin Collections library.

✐ Examples

1 Sort a List in Ascending Order

In this example,

We create a list named numbers with integer values.
We use the sorted method to sort the list in ascending order and store the sorted list in the variable sortedNumbers.
The sorted method sorts the elements in natural order.
Finally, we print the sorted list to the console.

Kotlin Program

fun main() {
    val numbers = listOf(5, 2, 8, 1, 3)
    val sortedNumbers = numbers.sorted()
    println("Sorted list in ascending order: $sortedNumbers")
}

Output

Sorted list in ascending order: [1, 2, 3, 5, 8]

2 Sort a List in Descending Order

In this example,

We create a list named numbers with integer values.
We use the sortedDescending method to sort the list in descending order and store the sorted list in the variable sortedNumbers.
The sortedDescending method sorts the elements in reverse natural order.
Finally, we print the sorted list to the console.

Kotlin Program

fun main() {
    val numbers = listOf(5, 2, 8, 1, 3)
    val sortedNumbers = numbers.sortedDescending()
    println("Sorted list in descending order: $sortedNumbers")
}

Output

Sorted list in descending order: [8, 5, 3, 2, 1]

Summary

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

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How to Sort a List in Kotlin - Step by Step Examples

How to Sort a List in Kotlin ?

Answer

✐ Examples

1 Sort a List in Ascending Order

Kotlin Program

Output

2 Sort a List in Descending Order

Kotlin Program

Output

Summary

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