From 62d47b8accf734082f6fc7414ced3caac705b24f Mon Sep 17 00:00:00 2001
From: edizor <113095366+edizor@users.noreply.github.com>
Date: Thu, 21 Sep 2023 20:07:58 +0800
Subject: [PATCH] Update README.md

[skip ci]
---
 core-java-modules/core-java-concurrency-collections-2/README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/core-java-modules/core-java-concurrency-collections-2/README.md b/core-java-modules/core-java-concurrency-collections-2/README.md
index 2d65cf88e7..fdb7af5936 100644
--- a/core-java-modules/core-java-concurrency-collections-2/README.md
+++ b/core-java-modules/core-java-concurrency-collections-2/README.md
@@ -5,4 +5,5 @@
 - [Java Concurrent HashSet Equivalent to ConcurrentHashMap](https://www.baeldung.com/java-concurrent-hashset-concurrenthashmap)
 - [Reading and Writing With a ConcurrentHashMap](https://www.baeldung.com/concurrenthashmap-reading-and-writing)
 - [ArrayBlockingQueue vs. LinkedBlockingQueue](https://www.baeldung.com/java-arrayblockingqueue-vs-linkedblockingqueue)
+- [Difference Between Hashtable and ConcurrentHashMap in Java](https://www.baeldung.com/java-hashtable-vs-concurrenthashmap)
 - [[<-- Prev]](/core-java-modules/core-java-concurrency-collections)