From 9e58a77df02f27c4d3b1aa373cf48bee6bb660d8 Mon Sep 17 00:00:00 2001
From: Powerstot <77142630+Powerstot@users.noreply.github.com>
Date: Wed, 12 May 2021 20:30:32 +0800
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添加0344.反转字符串 Java版本
---
 problems/0344.反转字符串.md | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/problems/0344.反转字符串.md b/problems/0344.反转字符串.md
index ddb9805d..02282355 100644
--- a/problems/0344.反转字符串.md
+++ b/problems/0344.反转字符串.md
@@ -140,7 +140,21 @@ public:
 
 
 Java：
-
+```Java
+class Solution {
+    public void reverseString(char[] s) {
+        int l = 0;
+        int r = s.length - 1;
+        while (l < r) {
+            s[l] ^= s[r];  //构造 a ^ b 的结果，并放在 a 中
+            s[r] ^= s[l];  //将 a ^ b 这一结果再 ^ b ，存入b中，此时 b = a, a = a ^ b
+            s[l] ^= s[r];  //a ^ b 的结果再 ^ a ，存入 a 中，此时 b = a, a = b 完成交换
+            l++;
+            r--;
+        }
+    }
+}
+```
 
 Python：