Certificate of completion

Kaleb Zufanetti Santos

Programming Best Practices: Improve the Code of a Java API

completed the online course with an estimated workload of 10 hours.

Finished at January 23, 2026

Guilherme Silveira

Coordinator

Paulo Silveira

Chief Vision Officer

https://cursos.alura.com.br/certificate/f6c7260d-08fd-40f9-a6e1-16c26d368e30

Course lessons

Programming Best Practices: Improve the Code of a Java API

  • Separation of responsibilities
  • The Data Transfer Object pattern
  • Flexible validations
  • Optimizations in the persistence layer
  • Challenges
Certificate authenticity QR code
Formal Certificate