From 66cd7012705cfabf2604329bcdc7a34a12541797 Mon Sep 17 00:00:00 2001
From: kyrie <783842766@qq.com>
Date: Sat, 15 May 2021 12:43:12 +0800
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0024.两两交换链表中的节点 Java递归版本
---
 problems/0024.两两交换链表中的节点.md | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/problems/0024.两两交换链表中的节点.md b/problems/0024.两两交换链表中的节点.md
index 9f07b4f7..58cd3d8a 100644
--- a/problems/0024.两两交换链表中的节点.md
+++ b/problems/0024.两两交换链表中的节点.md
@@ -86,6 +86,23 @@ public:
 
 
 Java：
+```Java
+class Solution {
+    public ListNode swapPairs(ListNode head) {
+        // base case 退出提交
+        if(head == null || head.next == null) return head;
+        // 获取当前节点的下一个节点
+        ListNode next = head.next;
+        // 进行递归
+        ListNode newNode = swapPairs(next.next);
+        // 这里进行交换
+        next.next = head;
+        head.next = newNode;
+
+        return next;
+    }
+} 
+```
 
 
 Python：