diff --git a/problems/0102.二叉树的层序遍历.md b/problems/0102.二叉树的层序遍历.md
index 8c34d415..be2e9dca 100644
--- a/problems/0102.二叉树的层序遍历.md
+++ b/problems/0102.二叉树的层序遍历.md
@@ -419,7 +419,8 @@ public:
 
 Java：
 
-```Java
+``` Java
+
 
 class Solution {
     public List<List<Integer>> resList=new ArrayList<List<Integer>>();