How to Convert a Set of Integers to a Set of Strings in Kotlin - Step by Step Examples

How to Convert a Set of Integers to a Set of Strings in Kotlin ?

Answer

To convert a set of integers to a set of strings in Kotlin, you can use the map function along with toString() method to convert each integer to a string.


✐ Examples

1 Convert a Set of Integers to a Set of Strings using map Function

In this example,

  1. We have a set of integers named intSet.
  2. We use the map function to apply a transformation to each element of the set.
  3. Inside the map function, we convert each integer element to a string using the toString() method.
  4. The map function returns a new set with the transformed elements.

Kotlin Program

fun main() {
    val intSet = setOf(1, 2, 3, 4, 5)
    val stringSet = intSet.map { it.toString() }.toSet()
    println("Set of strings: $stringSet")
}

Output

Set of strings: [1, 2, 3, 4, 5]

2 Convert a Set of Integers to a Set of Strings using joinToString Function

In this example,

  1. We have a set of integers named intSet.
  2. We use the joinToString function to convert each integer element to a string and concatenate them into a single string with specified separator.
  3. We split the concatenated string using the specified separator to get a list of strings.
  4. We convert the list of strings back to a set.

Kotlin Program

fun main() {
    val intSet = setOf(1, 2, 3, 4, 5)
    val stringSet = intSet.joinToString(",").split(",").toSet()
    println("Set of strings: $stringSet")
}

Output

Set of strings: [1, 2, 3, 4, 5]

Summary

In this tutorial, we learned How to Convert a Set of Integers to a Set of Strings in Kotlin language with well detailed examples.


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