Question

How to check if a string contains only English letters in Kotlin

Answer 1

import java.util.regex.Pattern

fun isOnlyEnglishLetters(s: String): Boolean {
    val pattern = "^[a-zA-Z]+$"
    return Pattern.matches(pattern, s)
}

fun main() {
    val s1 = "Kotlin"
    println(isOnlyEnglishLetters(s1))

    val s2 = "Kotlinコトリン"
    println(isOnlyEnglishLetters(s2))
}



 
/*
run:

true
false
 
*/

 

70+ SQL courses for beginners and professionals