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Design Patterns: A Quick Guide To Observer Pattern In Java

Design Patterns: A Quick Guide To Observer Pattern In Java

Submitted by • April 25, 2020 www.decipherzone.com

Observer design pattern is a software design pattern that conceptualises the communication strategies between the objects and their dependents. In such a pattern we create a subject class that maintains a list of dependencies called observers that are notified of any change in state of the subject or whatever they are listening to. You might be well aware of event driven programming paradigm. The main focus of such paradigms is to implement event handling systems. “JavaScript”, for example is a popular event driven programming language. Even in Java, there are components that listen to events.

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