isEqualTo("kh wrog ph l frxog qhyhu whdfk d oodpd wr gulyh") Īs we can see, the ciphered message respects the matching defined earlier for an offset of 3. String cipheredMessage = cipher.cipher("he told me i could never teach a llama to drive", 3) Now, let’s try this implementation on the message “he told me i could never teach a llama to drive” with an offset of 3: CaesarCipher cipher = new CaesarCipher() And finally, we retrieve the new character by adding the new position to the ASCII code of letter a. First, we compute the position of the current letter in the alphabet, and for that, we take its ASCII code and subtract the ASCII code of letter a from it. Then we apply the offset to this position, carefully using the modulo to remain in the alphabet range.
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