From d646ad263d9bf421559479b3d73458b586dca691 Mon Sep 17 00:00:00 2001
From: nanhuaibeian <49868746+nanhuaibeian@users.noreply.github.com>
Date: Thu, 13 May 2021 09:45:18 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A00376.=E6=91=86=E5=8A=A8?=
 =?UTF-8?q?=E5=BA=8F=E5=88=97=20Java=E7=89=88=E6=9C=AC?=
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---
 problems/0376.摆动序列.md | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/problems/0376.摆动序列.md b/problems/0376.摆动序列.md
index 6ae76526..fa90142d 100644
--- a/problems/0376.摆动序列.md
+++ b/problems/0376.摆动序列.md
@@ -111,7 +111,31 @@ public:
 
 
 Java：
-
+```Java
+class Solution {
+    public int wiggleMaxLength(int[] nums) {
+        if (nums == null || nums.length <= 1) {
+            return nums.length;
+        }
+        //当前差值
+        int curDiff = 0;
+        //上一个差值
+        int preDiff = 0;
+        int count = 1;
+        for (int i = 1; i < nums.length; i++) {
+            //得到当前差值
+            curDiff = nums[i] - nums[i - 1];
+            //如果当前差值和上一个差值为一正一负
+            //等于0的情况表示初始时的preDiff
+            if ((curDiff > 0 && preDiff <= 0) || (curDiff < 0 && preDiff >= 0)) {
+                count++;
+                preDiff = curDiff;
+            }
+        }
+        return count;
+    }
+}
+```
 
 Python：