From 9088a415db91ac4fbb808b4789edd8b801b1257a Mon Sep 17 00:00:00 2001
From: Miguel <159189630+MiguelAntonioRS@users.noreply.github.com>
Date: Mon, 20 Oct 2025 12:32:28 -0400
Subject: [PATCH] docs: add real-world example to Observer pattern README

---
 observer/README.md | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/observer/README.md b/observer/README.md
index 6b8a700771f3..ade8458ccde9 100644
--- a/observer/README.md
+++ b/observer/README.md
@@ -209,3 +209,10 @@ Trade-offs:
 * [Head First Design Patterns: Building Extensible and Maintainable Object-Oriented Software](https://amzn.to/49NGldq)
 * [Pattern-Oriented Software Architecture Volume 1: A System of Patterns](https://amzn.to/3xZ1ELU)
 * [Refactoring to Patterns](https://amzn.to/3VOO4F5)
+
+## Real-World Example
+
+The Observer pattern is widely used in event-driven architectures.
+For instance, in Java Swing or JavaFX applications, UI components can register listeners
+to react to user actions without tightly coupling the business logic to the interface.
+This makes the system more modular and easier to extend.