From 0820b279f9dacf01e8408c80cccb9079a64300c2 Mon Sep 17 00:00:00 2001
From: sjsdfg <736777445@qq.com>
Date: Thu, 14 Feb 2019 17:02:46 +0800
Subject: [PATCH] update

---
 50. 必要时进行防御性拷贝.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/50. 必要时进行防御性拷贝.md b/50. 必要时进行防御性拷贝.md
index 98cff86..f9b9097 100644
--- a/50. 必要时进行防御性拷贝.md	
+++ b/50. 必要时进行防御性拷贝.md	
@@ -80,7 +80,7 @@ p.end().setYear(78);  // Modifies internals of p!
 
 　　为了抵御第二次攻击，只需修改访问器以返回可变内部字属性的防御性拷贝:
 
-```
+```Java
 // Repaired accessors - make defensive copies of internal fields
 public Date start() {
     return new Date(start.getTime());