The Order Java Builds Your Objects In¶
☕ Java 17
When you write new Movie("Dune"), Java does much more than call a constructor. It sets up the class, fills in fields, runs initializer blocks and climbs up to the parent classes — always in the same order.
Once you know that order, you can read any class and predict exactly what it prints.
In this series¶
| # | Page | Reading time |
|---|---|---|
| 1 | Class setup: static code runs first | 3 min |
| 2 | Building an object, step by step | 3 min |
| 3 | Parents first, and final fields | 3 min |
| 4 | Lab: booting the streaming catalog | 4 min |
🎓 OCP 1Z0-829 candidates: exam traps and practice questions (optional)
Prerequisites: classes, constructors, this() and super() (Building Objects the Right Way with Constructors).