From ac493abbc4a7514d86159b0d95647fa8f0c753c7 Mon Sep 17 00:00:00 2001
From: johnA1331 <53036378+johnA1331@users.noreply.github.com>
Date: Wed, 8 Dec 2021 23:02:06 +0800
Subject: [PATCH] Update README.md

---
 core-java-modules/core-java-collections-maps-4/README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/core-java-modules/core-java-collections-maps-4/README.md b/core-java-modules/core-java-collections-maps-4/README.md
index cb25aa5a8a..795f0df702 100644
--- a/core-java-modules/core-java-collections-maps-4/README.md
+++ b/core-java-modules/core-java-collections-maps-4/README.md
@@ -5,3 +5,4 @@ This module contains articles about Map data structures in Java.
 ### Relevant Articles: 
 - [Using a Custom Class as a Key in a Java HashMap](https://www.baeldung.com/java-custom-class-map-key)
 - [Nested HashMaps Examples in Java](https://www.baeldung.com/java-nested-hashmaps)
+- [Java HashMap With Different Value Types](https://www.baeldung.com/java-hashmap-different-value-types)