How to encrypt and decrypt string in java without using any algorithm...?

Question

Encryption, decryption in java...
Example....

Answer 1

https://www.sololearn.com/learn/10363/?ref=app
https://www.sololearn.com/post/55154/?ref=app

Answer 2

Even the simplest encryption/decryption will be needing and using an algorithm, so I guess that's not possible.