Rotational Cipher

Challenge Overview

Create an implementation of the rotational cipher, also sometimes called the Caesar cipher.

Visit the rotational-cipher exercise on Exercism to read the full instructions and download the exercise files.

Community Solutions

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The following are the top 3 community solutions by stars:

Solution 1 by @yesterdaysun (⭐ 15) — View on Exercism
Solution 2 by @Tanuja2506 (⭐ 0) — View on Exercism
Solution 3 by @gami7 (⭐ 0) — View on Exercism

Source: Exercism java/rotational-cipher

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class RotationalCipher {

    private int shiftKey;

    RotationalCipher(int shiftKey) {
        this.shiftKey = shiftKey;
    }

    int rot(int ch) {
        if (!Character.isLetter(ch)) {