You've got Memento down.
What you covered
💡 The Bottom Line, one more time
Memento pattern explained: capture and externalize an object's internal state so it can be restored later, without breaking encapsulation.
What's next
Memento is one of 23 classic Gang-of-Four patterns. From here, the natural next step is:
- Explore more patterns — see the full Design Patterns track for all 23, grouped by Creational, Structural, and Behavioral.
- SOLID Design Principles — many patterns, including this one, are concrete applications of SOLID principles.