How to Remove All Whitespace Characters from a String in Kotlin

How to Remove All Whitespace Characters from a String in Kotlin ?

Answer

To remove all whitespace characters from a string in Kotlin, you can use the `replace` method with a regular expression.

✐ Examples

1 Remove Whitespace from "Hello World"

In this example,

We create a string named str with a string value of "Hello World".
We then use the replace method with a regular expression \s+ to replace all whitespace characters (including tabs, spaces, newlines, etc.) with an empty string in str.
Finally, we print the modified string str.

Kotlin Program

fun main() {
    val str = "Hello World"
    val modifiedStr = str.replace(Regex("\\s+"), "")
    println("Modified string: $modifiedStr")
}

Output

Modified string: HelloWorld

2 Remove Whitespace from "apple\tbanana\n cherry "

In this example,

We create a string named str with a string value of "apple\tbanana\n cherry ".
We then use the replace method with a regular expression \s+ to replace all whitespace characters (including tabs, spaces, newlines, etc.) with an empty string in str.
Finally, we print the modified string str.

Kotlin Program

fun main() {
    val str = "apple\tbanana\n cherry  "
    val modifiedStr = str.replace(Regex("\\s+"), "")
    println("Modified string: $modifiedStr")
}

Output

Modified string: applebananacherry

Summary

In this tutorial, we learned How to Remove All Whitespace Characters from a String in Kotlin language with well detailed examples.

◀ Previous Next ▶

Kotlin Tutorials

Kotlin How-Tos

How to Remove All Whitespace Characters from a String in Kotlin

How to Remove All Whitespace Characters from a String in Kotlin ?

Answer

✐ Examples

1 Remove Whitespace from "Hello World"

Kotlin Program

Output

2 Remove Whitespace from "apple\tbanana\n cherry "

Kotlin Program

Output

Summary

More Kotlin Strings Tutorials