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Observer Pattern Implementation in Java

🎯 What is the Observer Pattern? The Observer pattern is a behavioral design pattern that defines a one-to-many dependency between objects. When one object (the subject) changes state, all of its ...
GitHub

Observer Pattern — YouTube Channel Example

A minimal Java implementation of the Observer design pattern (Gang of Four, behavioral). The classic example: a VideoChannel (the SUBJECT) has a list of Subscribers (the OBSERVERS). When the channel ...