diff --git a/javaSE-day03/src/com/inmind/list01/ListDemo01.java b/javaSE-day03/src/com/inmind/list01/ListDemo01.java
new file mode 100644
index 0000000..f78cbea
--- /dev/null
+++ b/javaSE-day03/src/com/inmind/list01/ListDemo01.java
@@ -0,0 +1,42 @@
+package com.inmind.list01;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/*
+List接口是单列集合Collection接口的子接口
+    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) {
+        //创建List集合
+        List<String> lists = new ArrayList<>();
+        lists.add("刘备");
+        lists.add("关羽");
+        lists.add("张飞");
+        System.out.println(lists);//重写了toString
+
+        lists.remove("张飞");
+        System.out.println(lists);
+
+        System.out.println(lists.contains("张飞"));//false
+
+        System.out.println(lists.isEmpty());//false
+
+        System.out.println(lists.size());//2
+
+        lists.clear();
+        System.out.println(lists.size());//0
+
+        Object[] array = lists.toArray();
+
+    }
+}