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Design Pattern 22: Memento Pattern - Complete Guide with Undo/Redo Examples
Master the Memento Pattern with practical undo/redo and state recovery examples. Learn how to implement state snapshots, history management, and robust data recovery.
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Design Pattern 21: Mediator Pattern - Complete Guide with Real-World Chatroom Example
Master the Mediator Pattern with practical chatroom and system coordination examples. Learn how to reduce coupling, improve extensibility, and centralize communication logic.
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Design Pattern 20: Iterator Pattern - Complete Guide with Real-World File System Examples
Master the Iterator Pattern with practical file system traversal examples. Learn how to provide sequential access to collection elements without exposing internal structure, improving code flexibility and maintainability.
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Design Pattern 19: Command Pattern - Complete Guide with Undo/Redo and Remote Control Examples
Master the Command Pattern with practical remote control and undo/redo examples. Learn how to decouple operations, implement flexible controls, and support extensible command history.
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Design Pattern 18: Chain of Responsibility Pattern - Complete Guide with Real-World Logging Examples
Master the Chain of Responsibility Pattern with practical logging system examples. Learn how to create flexible request processing chains, implement dynamic handlers, and build extensible systems.