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Behavioral patterns
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Behavioral patterns focus on who does what and how objects collaborate. They describe complex control and data flows.
List
| Pattern | Key idea |
|---|---|
Chain of Responsibility | Handler chain |
| Command | Request as an object |
Interpreter | Grammar + interpretation |
| Iterator | Traverse without exposing structure |
| Mediator | Central communication hub |
| Memento | Capture and restore state |
| Observer | Publish / subscribe |
| State | Behavior from internal state |
| Strategy | Interchangeable algorithms |
Template Method | Algorithm skeleton in base class |
| Visitor | External operations on a structure |