1 design patterns delegates visitor pattern. 2 observer pattern observer pattern is an...

Download 1 Design Patterns Delegates Visitor Pattern. 2 Observer Pattern Observer Pattern is an object-oriented design that simulates void-pointers in for instance

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Delegates A delegate is a language construct that facilitates passing methods as parameters to other methods. This can be done both for instance and class methods. This can be done across objects and classes. Delegates are object oriented and type safe. Actual, a delegate is an object which contains a collection of methods that may be invoked. 3