Question

Write a static method called encodeString that takes a string as input and prints to the console a word where each letter is advanced by one value. In addition, your method should return the encoded String. You may make use of the method provided below to help you. public static char encode(char x) { int current = x; current++; return (char)current; } This method takes a character and returns an "encoded" character. In other words, encode('a') will return 'b'. Your method should take the encoding one step further: encodeString("Hello"); would cause the string "Ifmmp" to be displayed on the console.

Answer 1

public class EncodeString {

    public static char encode(char x) {
        int current = x;
        current++;
        return (char) current;
    }

    public static String encodeString(String s) {
        String result = "";
        for(int i = 0; i < s.length(); ++i) {
            result += encode(s.charAt(i));
            System.out.print(result.charAt(i));
        }
        System.out.println();
        return result;
    }

    public static void main(String[] args) {
        encodeString("Hello");
    }

}