1. User input text on midField.
2. Then you will get the text inputted and you will decode the whole string by changing each letter in the string to the next letter in the alphabet. eg (a to b, b to c)
3. Then you will display this decode text.
Well basically all four of those Methods are a button. Each time you hit Start "Eric" will move to the midField text box, and the number of Encryption steps will show in the stepField. Then every time you hit the encodeText button, it selects a random character and increases it by one place. so: "Esic" now appears, and that character place shows in the bottomField, while the stepField shows one. Hit encode again it selects another random character and increases it by one place so: "Esid" now appears and the character place shows in the bottom field, while the stepField shows 2. And so on. Then every time you hit the decodeText button, it removes one step/ecryption, so it goes back to "Esic" reduces the step and removes that character place.