Question

How to shift each letter in a string N places up in the alphabet with Java

Answer 1

public class Program {
    public static String shiftEachLetterNPlacesUp(String str, int N) {
        StringBuilder result = new StringBuilder();
        
        for (char ch : str.toCharArray()) {
            int asciiCode = (int)ch + N;
            if ((asciiCode >= 97 && asciiCode <= 122) || (asciiCode >= 65 && asciiCode <= 90)) {
                result.append((char)asciiCode);
            } else {
                result.append(ch);
            }
        }
        return result.toString();
    }
    public static void main(String[] args) {
        System.out.println(shiftEachLetterNPlacesUp("8a Fkq", 3));
    }
}



/*
run:
  
8d Int
  
*/

70+ SQL courses for beginners and professionals