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Name The Actor Classes Used In Observer Pattern? |
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Answer» Observer pattern uses three actor CLASSES. Subject, Observer and Client. Subject is an object having METHODS to attach and detach observers to a client object. We have CREATED an ABSTRACT class Observer and a concrete class Subject that is EXTENDING class Observer. Observer pattern uses three actor classes. Subject, Observer and Client. Subject is an object having methods to attach and detach observers to a client object. We have created an abstract class Observer and a concrete class Subject that is extending class Observer. |
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