high_level.md

How to Code Ceasar Cipher:

1. Create a class CeasarCipher and instances (e.g. cipher1).
2. Create a property alphabet for the class that is an array of the standard letters of the alphabet.
3. Create a method encode for the class with a combination of array methods: pop to remove the last letter of the alphabet string and return that letter, and unshift to add the letter that's been returned to the front of the array. Put the array methods in a loop condition to repeat pop and unshift for as many times as you want to repeat pop and unshift methods.
4. Apply encode to an cipher1 (instance of CeasarCipher) to return modified alphabet.