Understanding Test‑Driven Development (TDD), UTDD, ATDD, and BDD with a Practical Java Example
This article explains the concepts of Test‑Driven Development (TDD), Unit Test‑Driven Development (UTDD), Acceptance Test‑Driven Development (ATDD) and Behavior‑Driven Development (BDD), discusses why TDD is not dead, compares the three approaches, and provides a step‑by‑step Java implementation with code samples, testing workflow, and refactoring guidance.