Is there an approach to finding the ASCII distance between two strings of 5 characters

I am trying to find a way to calculate and print the Ascii distance between a string from user input

 Scanner scan = new Scanner(System.in);
    System.out.print("Please enter a string of 5 uppercase characters:");
    String userString = scan.nextLine();
    

and a randomly generated string

 int leftLimit = 65; // Upper-case 'A'
    int rightLimit = 90; // Upper-case 'Z'
    int stringLength = 5;
    Random random = new Random();
    String randString = random.ints(leftLimit, rightLimit + 1)
        .filter(i -> (i <= 57 || i >= 65) && (i <= 90 || i >= 97))
        .limit(stringLength)
        .collect(StringBuilder::new, StringBuilder::appendCodePoint, StringBuilder::append)
        .toString();

Is there a way to calculate the distance without having to separate each individual character from the two strings, comparing them and adding them back together?

Use Edit distance (Levenshtein distance)

You can

• 1. Implement your own edit distance based on the algorithm on wikipedia,
• 2. you can use an existing source code, for that look at rosetta code.
• 3. use an existing library like apache LevenshteinDistance

you can also check

• Levenshtein Distance on stackoverflow