Caesar Cipher JavaFX Application

This is a simple Caesar Cipher implementation using JavaFX, which allows users to encode and decode messages using the Caesar Cipher technique. The application provides a graphical interface for users to input their text, specify a shift value, and view the encoded or decoded result.

Features

• Encode and decode messages with a Caesar Cipher.
• Input field for the message.
• Input field for the shift value.
• Display the encoded/decoded output.
• A simple user interface built with JavaFX.
• Customizable shift value with default of 3.
• Exit button to close the application.