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Usage examples: The Adapter pattern is pretty common in C# code. It’s very often used in systems based on some legacy code. In such cases, Adapters make legacy code work with modern classes.
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Identification: Adapter is recognizable by a constructor which takes an instance of a different abstract/interface type. When the adapter receives a call to any of its methods, it translates parameters to the appropriate format and then directs the call to one or several methods of the wrapped object.