Please solve this using Java language.

You have to implement the RSA algorithm from scratch. Your implementation should also include Euclid and Extended Euclid for finding the inverse. Coding/Encoding of characters for encryption and decryption. The user should be able to configure your algorithm if she/he wants to use some particular n, p, e or d There should be also a default setting so that it can run without any configuration inputs from the user. It should also have an option to show the entire process step by step or graphically