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Object-oriented Programming in C#
Reference types, Value types, and Patterns
Object-oriented Design Patterns

Object-oriented design patterns were introduced in the book "Design Patterns - Elements of Reusable Object-Oriented Software" by Gamma, Helm, Johnson and Vlissides.

  • Twenty three patterns categorized as

    • Creational Patterns

      • Abstract factory, Factory method, Singleton, ...

    • Structural Patterns

      • Adapter, Composite, Proxy, ...

    • Behavioral Patterns

      • Command, Iterator, Observer, ...


There are patterns in a variety of different areas, and at various levels of abstractions