: These focus on communication between objects and how responsibilities are assigned.

These patterns are concerned with algorithms and the assignment of responsibilities between objects.

Defines a subscription mechanism to notify multiple objects about any events that happen to the object they’re observing.

If you want, I can run searches on GitHub for specific "Dive Into Design Patterns" repos and list candidate links (I will not download files). Would you like that?

Or browse repositories by topic: topic:design-patterns

: Dealing with object composition (e.g., Adapter, Decorator, Facade).

Each pattern starts with an everyday real-world problem, transitions into how a naive coding approach fails, and then introduces the design pattern as the logical, elegant solution.

: The LJYC-ME/Learn-Design-Patterns repository serves as a reference guide based on the book's teachings.

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