/**
* Removes all non-numeric characters from a string, returning a new string
* containing only numeric digits (0-9).
*
* @param input The source string containing alphanumeric and special characters.
* @return A new String containing only digits.
*/
fun removeNonNumeric(input: String): String {
// Filter the characters, retaining only digits using Kotlin's Char::isDigit
return input.filter(Char::isDigit)
}
fun main() {
// Test string provided
val text = "123XYZ +9982-programming 10000000000001language"
// Process the string
val cleanedText = removeNonNumeric(text)
// Output results
println("Original: $text")
println("Cleaned: $cleanedText")
}
/*
run:
Original: 123XYZ +9982-programming 10000000000001language
Cleaned: 123998210000000000001
*/
