The Observable design pattern is found in many Java APIs and in reactive programming. Here's an introduction to the timeless Observable pattern in Java.

The Observer pattern is probably one of the best ways to reduce coupling between objects. For example, if you are writing a typical application, you may decide to provide a factory or manager that ...

This article describes an easy process of implementing the observer pattern in the Spring framework (Spring Core). Also discussed in this article are a few of the Spring Core classes as well as an ...