From e9796b1742263d1fdd3ca8e07c08ccf0d4e97d78 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Tue, 3 Feb 2026 14:44:37 +0800
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---
 .../src/com/inmind/extend02/Demo10.java       | 34 +++++++++++++++++++
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 create mode 100644 javaSE-day04/src/com/inmind/extend02/Demo10.java

diff --git a/javaSE-day04/src/com/inmind/extend02/Demo10.java b/javaSE-day04/src/com/inmind/extend02/Demo10.java
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+++ b/javaSE-day04/src/com/inmind/extend02/Demo10.java
@@ -0,0 +1,34 @@
+package com.inmind.extend02;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+/*
+    在JDK9版本之后，对于单列和双列集合的接口中，定义一个静态方法 of方法，它能够快速的创建出一些
+    简单的集合，保证该集合数据不可变
+
+    注意：当我们要创建一些不可改变的基准数据时，就可以使用of方法
+ */
+public class Demo10 {
+    public static void main(String[] args) {
+        //使用List接口的of方法，创建出不可改变的集合
+        ArrayList<Integer> lists = new ArrayList<>();
+        lists.add(1);
+
+        List<Integer> list = List.of(1, 2, 3, 4, 5, 5, 5);
+        System.out.println(list);
+        //以下对of方法得到的集合，进行增删改操作时，会保出java.lang.UnsupportedOperationException
+//        list.add(6);
+//        list.remove(5);
+//        list.set(0, 100);
+
+        Set<Integer> set = Set.of(1, 2, 3, 4);
+        System.out.println(set);
+
+        Map<String, String> map = Map.of("刘备", "孙尚香", "吕布", "貂蝉");
+        System.out.println(map);
+
+    }
+}