moss/Encryption.java at main · rockpaperscissorshoot/moss · GitHub

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public class Encryption {
    private static final int SHIFT = 3;
    private static char[] charAtI;
    private static char charAtO;

    public static String encrypt(String input) {
        String encrypted = input;
        String theDecryptedString="";
        charAtI = encrypted.toCharArray();
        for (int i = 0; i < encrypted.length(); i++) {
            charAtO = encrypted.charAt(i);
            charAtI[i] = (char)(charAtO + SHIFT);
            System.out.println((char) (charAtO+SHIFT));
        }
        for (int i = 0; i < encrypted.length(); i++) {
            theDecryptedString = (String) ( theDecryptedString + charAtI[i]);
        }
        System.out.println(theDecryptedString);
        return theDecryptedString;
    }

    public static String decrypt(String input) {
        String decrypted = input;
        String theDecryptedString="";
        charAtI = decrypted.toCharArray();
        for (int i = 0; i < decrypted.length(); i++) {
            charAtO = decrypted.charAt(i);
            charAtI[i] = (char)(charAtO - SHIFT);
            System.out.println((char) (charAtO-SHIFT));
        }
        for (int i = 0; i < decrypted.length(); i++) {
            theDecryptedString = (String) ( theDecryptedString + charAtI[i]);
        }
        System.out.println(theDecryptedString);
        return theDecryptedString;
    }
}