diff --git a/core-java-modules/core-java-string-operations-8/README.md b/core-java-modules/core-java-string-operations-8/README.md
index 7d843af9ea..7e961ed041 100644
--- a/core-java-modules/core-java-string-operations-8/README.md
+++ b/core-java-modules/core-java-string-operations-8/README.md
@@ -1 +1,2 @@
 ### Relevant Articles:
+- [Count Uppercase and Lowercase Letters in a String](https://www.baeldung.com/java-string-count-letters-uppercase-lowercase)