Q: I want to use the Java Observer pattern in my project.With that in mind, can you give me some sample code to demonstrate how it works. A: Just as object-oriented programming encourages code ...

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.

I currently have a program that polls a MySql database for changes. I'd like to switch to the Observer design pattern, but I'm not sure of the best way of implementing it. I was thinking maybe I'd ...

The observer interface defines a contract for updating the observer upon a subject notification. The concrete observer class implements the observer interface and handles its needed update logic. In ...

Object wiring: An Observer-Observable pattern Learn the details while applying the concept in .NET. Written by Rahul Tyagi, Contributor July 13, 2002 at 10:59 p.m. PT ...

The observer interface defines a contract for updating the observer upon a subject notification. The concrete observer class implements the observer interface and handles its needed update logic. In ...