The next cheat sheet includes:

• Test-Driven development

• Stream Pipelines.

• equals().

• hashCode() (for next challenge).

• HashMap (for next challenge).

• static and final.

• Naming conventions.

https://www.learnthepart.com/course/2dfda34d-6bbc-4bd5-8f45-d5999de2f514/eab9f27c-c3ae-4542-a15a-407e33526d61