Level 4
Mutable vs Immutable + data modeling
Each markdown file opens as a slide deck: one slide per ## heading. Order follows the folder
README when it lists files.
In this level
Lesson modules
Filenames match the repo; slugs are what you see in the URL path.
- 1
4001mutable-vs-immutable
Slides4001mutable-vs-immutable
- 2
4002final-and-immutable-classes
Slides4002final-and-immutable-classes
- 3
4003copywith-manual
Slides4003copywith-manual
- 4
4004equals-hashcode
Slides4004equals-hashcode
- 5
4005build-immutable-user-product-order-item
Slides4005build-immutable-user-product-order-item
- 6
4006build-copywith-manual
Slides4006build-copywith-manual
- 7
4007build-immutability-equality-checks
Slides4007build-immutability-equality-checks