This is an encoder--a programme for encoding using substiution codes. this is my first version, so please enjoy. --------------------------------------------------------- HOW TO USE First, you have to enter the code key. (what you what A ,B,C...to turn into) The list on the right will show your current code key is. When you are ready, click the button, and the 'finished' list will show you the results. You can also use this as a decoder if you want, but first you must know the code key.
Thanks to Martin Gardener, whose book inspired me to make this programme. I also thank my mum, who gave me all the support I needed.