From 768e6b767a448c611765fc65d002659b9720fc04 Mon Sep 17 00:00:00 2001
From: edizor <113095366+edizor@users.noreply.github.com>
Date: Wed, 17 May 2023 20:58:22 +0800
Subject: [PATCH] Update README.md

[skip ci]
---
 core-java-modules/core-java-lang-oop-patterns/README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/core-java-modules/core-java-lang-oop-patterns/README.md b/core-java-modules/core-java-lang-oop-patterns/README.md
index df68a1413a..ea3309dc0a 100644
--- a/core-java-modules/core-java-lang-oop-patterns/README.md
+++ b/core-java-modules/core-java-lang-oop-patterns/README.md
@@ -8,3 +8,4 @@ This module contains articles about Object-oriented programming (OOP) patterns i
 - [Immutable Objects in Java](https://www.baeldung.com/java-immutable-object)
 - [How to Make a Deep Copy of an Object in Java](https://www.baeldung.com/java-deep-copy)
 - [Using an Interface vs. Abstract Class in Java](https://www.baeldung.com/java-interface-vs-abstract-class)
+- [Should We Create an Interface for Only One Implementation?](https://www.baeldung.com/java-interface-single-implementation)