From 8be09650094b4f40b004a97ee8b1b981c9a20ef7 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Wed, 28 Jan 2026 10:21:34 +0800
Subject: [PATCH] =?UTF-8?q?=E8=BF=9B=E9=98=B6day01-Calendar=E9=87=8C?=
 =?UTF-8?q?=E9=9D=A2=E7=9A=84add=E6=96=B9=E6=B3=95?=
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---
 .../src/com/inmind/calendar03/Demo10.java     | 31 +++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/javaSE-day01/src/com/inmind/calendar03/Demo10.java b/javaSE-day01/src/com/inmind/calendar03/Demo10.java
index 1343acb..7c5fc68 100644
--- a/javaSE-day01/src/com/inmind/calendar03/Demo10.java
+++ b/javaSE-day01/src/com/inmind/calendar03/Demo10.java
@@ -1,4 +1,35 @@
 package com.inmind.calendar03;
 
+import java.util.Calendar;
+
+/*
+    12.Calendar中的add方法
+    能够对时间进行计算
+    public abstract void add(int field, int amount) ：根据日历的规则，为给定的日历字段添加或减去指定的时间量。
+
+
+	field参数：
+		指定的年月日常量
+    amount参数:
+        正数:增加
+        负数:减少
+ */
 public class Demo10 {
+    public static void main(String[] args) {
+        Calendar calendar = Calendar.getInstance();
+        showCalendar(calendar);
+        //在当前时间的基础上+2年
+        calendar.add(Calendar.YEAR,2);
+        showCalendar(calendar);
+        //在当前时间的基础上+10月
+        calendar.add(Calendar.MONTH,10);
+        showCalendar(calendar);
+        //在当前时间的基础上-10天
+        calendar.add(Calendar.DAY_OF_MONTH,10);
+        showCalendar(calendar);
+    }
+
+    public static void showCalendar(Calendar calendar) {
+        System.out.println(calendar.get(Calendar.YEAR)+"年"+(calendar.get(Calendar.MONTH)+1)+"月"+calendar.get(Calendar.DAY_OF_MONTH)+"日");
+    }
 }