Caesar Cipher

package ex2_TextProcessingAndRegEx_20March2019;

import java.util.Scanner;

public class P04_CaesarCipher {
    public static void main(String[] args) {
        @SuppressWarnings("resource")

        Scanner sc = new Scanner(System.in);

        String input = sc.nextLine();
        String res = "";

        for (int i = 0; i < input.length(); i++) {
            char symbol = (char)(input.charAt(i) + 3);
            res += symbol;
        }

        System.out.println(res);
    }
}