diff --git a/notes/Java 容器.md b/notes/Java 容器.md
index a9125742..5868a4e5 100644
--- a/notes/Java 容器.md	
+++ b/notes/Java 容器.md	
@@ -131,7 +131,7 @@ if x.equals(y) && y.equals(z) {
 多次调用 equals() 方法结果不变
 
 ```java
-x.equals(y) == x.equals(y) == x.equals(y) == x.equals(y); // true
+x.equals(y) == x.equals(y); // true
 ```
 
 **5. 与 null 的比较**