Question

How to count the number of characters in a string without spaces and special characters in Java

Answer 1

import java.util.regex.Pattern;

public class CountCharactersInStringWithoutSpacesAndSpecialCharacters_Java  {
    public static void main(String[] args) {
        String str = "8rust java 123 c &c++.";
        
        int result = (str.replaceAll("[^A-Za-z]", "")).length();

        System.out.println(result);
    }
}


/*
run:

10

*/

 

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