This project is part of a set of tutorials about design patterns, it was made by me and Cibele Paulino:
https://medium.com/@irmaos.tertos/design-patterns-introdução-b7a8d6a3a08c https://medium.com/@irmaos.tertos/design-pattern-strategy-d6e68431a0a9 https://medium.com/@irmaos.tertos/design-patterns-decorator-pattern-1fbd3011acf9 https://medium.com/@irmaos.tertos/design-patterns-chain-of-responsibility-49c0f1d35225