How to Reverse an Array in Kotlin - Step by Step Examples

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How to Reverse an Array in Kotlin ?

Answer

To reverse an array in Kotlin, you can use the built-in `reverse()` function.

✐ Examples

1 Reverse Array of Integers

In this example,

We have an array named intArray containing integers.
We use the reverse() function on intArray to reverse its elements.
The reversed array is stored in reversedArray.
We print both arrays to demonstrate the reversal.

Kotlin Program

fun main() {
    val intArray = intArrayOf(1, 2, 3, 4, 5)
    val reversedArray = intArray.reversed()
    println("Original Array: ${intArray.joinToString()}")
    println("Reversed Array: ${reversedArray.joinToString()}")
}

Output

Original Array: 1, 2, 3, 4, 5
Reversed Array: 5, 4, 3, 2, 1

2 Reverse Array of Strings

In this example,

We have an array named strArray containing strings.
We use the reverse() function on strArray to reverse its elements.
The reversed array is stored in reversedArray.
We print both arrays to demonstrate the reversal.

Kotlin Program

fun main() {
    val strArray = arrayOf("apple", "banana", "cherry")
    val reversedArray = strArray.reversed()
    println("Original Array: ${strArray.joinToString()}")
    println("Reversed Array: ${reversedArray.joinToString()}")
}

Output

Original Array: apple, banana, cherry
Reversed Array: cherry, banana, apple

Summary

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

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How to Reverse an Array in Kotlin - Step by Step Examples

How to Reverse an Array in Kotlin ?

Answer

✐ Examples

1 Reverse Array of Integers

Kotlin Program

Output

2 Reverse Array of Strings

Kotlin Program

Output

Summary

More Kotlin Arrays Tutorials