From c8f77c260c6da50968756931d7805d0a52d606d0 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Wed, 14 Oct 2026 10:30:26 +0800
Subject: [PATCH] =?UTF-8?q?s-day03--List=E6=8E=A5=E5=8F=A3=E7=9A=84?=
 =?UTF-8?q?=E7=89=B9=E7=82=B9?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 s-day03/src/com/inmind/list01/ListDemo01.java | 29 +++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 s-day03/src/com/inmind/list01/ListDemo01.java

diff --git a/s-day03/src/com/inmind/list01/ListDemo01.java b/s-day03/src/com/inmind/list01/ListDemo01.java
new file mode 100644
index 0000000..f39aa21
--- /dev/null
+++ b/s-day03/src/com/inmind/list01/ListDemo01.java
@@ -0,0 +1,29 @@
+package com.inmind.list01;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/*
+    1.List接口的特点
+        a.存取有序
+        b.有索引
+        c.可以重复
+
+    2.List接口的常用的实现类
+        ArrayList  Linkedlist
+
+    3.List接口是Collection接口的子接口,所以昨天学习的所有的Collection的常用方法,它都能用
+ */
+public class ListDemo01 {
+    public static void main(String[] args) {
+        //List接口的多态
+        List<String> list = new ArrayList<>();
+        list.add("张三");
+        list.add("李四");
+        list.add("王五");
+        list.add("王五");
+        list.add("王五");
+        System.out.println(list);//ArrayList类重写了toString
+        System.out.println(list.get(0));
+    }
+}