How to Sort Characters in String in Kotlin - Step by Step Examples



How to Sort Characters in String in Kotlin ?

Answer

To sort characters in a string in Kotlin, you can convert the string to a list of characters, sort the list, and then join the characters back into a string.



✐ Examples

1 Sort Characters in Ascending Order

In this example,

  1. We create a string named str.
  2. We convert the string to a list of characters using toCharArray() function.
  3. We sort the list of characters in ascending order using the sorted() function.
  4. We join the sorted characters back into a string using joinToString() function.
  5. Finally, we print the sorted string in ascending order.

Kotlin Program

fun main() {
    val str = "hello world"
    val sortedString = str.toCharArray().sorted().joinToString("")
    println("Sorted string in ascending order: $sortedString")
}

Output

Sorted string in ascending order:  dehllloorw

2 Sort Characters in Descending Order

In this example,

  1. We create a string named str.
  2. We convert the string to a list of characters using toCharArray() function.
  3. We sort the list of characters in descending order using the sortedDescending() function.
  4. We join the sorted characters back into a string using joinToString() function.
  5. Finally, we print the sorted string in descending order.

Kotlin Program

fun main() {
    val str = "hello world"
    val sortedString = str.toCharArray().sortedDescending().joinToString("")
    println("Sorted string in descending order: $sortedString")
}

Output

Sorted string in descending order: wroolllhed

Summary

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




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