From 5cdd56e3a07e4450a460059f3ec86c898abe54dc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=8A=BC=E5=93=A5stone?= <stone0090@126.com>
Date: Fri, 8 Apr 2022 17:24:46 +0800
Subject: [PATCH] Update java-collection-questions-02.md

---
 docs/java/collection/java-collection-questions-02.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/java/collection/java-collection-questions-02.md b/docs/java/collection/java-collection-questions-02.md
index 08fcc1a9..46b08903 100644
--- a/docs/java/collection/java-collection-questions-02.md
+++ b/docs/java/collection/java-collection-questions-02.md
@@ -276,7 +276,7 @@ JDK1.8 的 `ConcurrentHashMap` 不再是 **Segment 数组 + HashEntry 数组 + 
 
 **`ConcurrentHashMap` 是由 `Segment` 数组结构和 `HashEntry` 数组结构组成**。
 
-Segment 实现了 `ReentrantLock`,所以 `Segment` 是一种可重入锁，扮演锁的角色。`HashEntry` 用于存储键值对数据。
+Segment 继承了 `ReentrantLock`,所以 `Segment` 是一种可重入锁，扮演锁的角色。`HashEntry` 用于存储键值对数据。
 
 ```java
 static class Segment<K,V> extends ReentrantLock implements Serializable {