diff --git a/core-java-modules/README.md b/core-java-modules/README.md
index 782d13238b..7a7d0a7a1b 100644
--- a/core-java-modules/README.md
+++ b/core-java-modules/README.md
@@ -2,3 +2,4 @@
 
 - [Multi-Module Maven Application with Java Modules](https://www.baeldung.com/maven-multi-module-project-java-jpms)
 - [Guide to Java FileChannel](https://www.baeldung.com/java-filechannel)
+- [Understanding the NumberFormatException in Java](https://www.baeldung.com/java-number-format-exception)