From 805ba2fc90a943eb460e3c562a196e36c2161e6e Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Sun, 1 Feb 2026 09:59:11 +0800
Subject: [PATCH] =?UTF-8?q?=E8=BF=9B=E9=98=B6day03-Set=E6=8E=A5=E5=8F=A3?=
 =?UTF-8?q?=E7=9A=84=E7=89=B9=E7=82=B9?=
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---
 .../src/com/inmind/set02/SetDemo06.java       | 29 +++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 javaSE-day03/src/com/inmind/set02/SetDemo06.java

diff --git a/javaSE-day03/src/com/inmind/set02/SetDemo06.java b/javaSE-day03/src/com/inmind/set02/SetDemo06.java
new file mode 100644
index 0000000..4d5c594
--- /dev/null
+++ b/javaSE-day03/src/com/inmind/set02/SetDemo06.java
@@ -0,0 +1,29 @@
+package com.inmind.set02;
+
+import java.util.HashSet;
+import java.util.Set;
+
+/*
+    Set集合是Collection集合的子接口,所以它拥有Collection接口的所有功能.
+    Set接口的特点:
+        1.存取无序(怎么存的不一定怎么取)
+        2.没有索引
+        3.不能重复
+
+     Set接口的实现类:
+        HashSet   LinkedHashSet
+
+     注意：由于Set集合底层数据结构是哈希表，导致它的特性：存取无序，没有索引，不能重复
+ */
+public class SetDemo06 {
+    public static void main(String[] args) {
+        //创建一个Set集合
+        Set<String> sets = new HashSet<>();
+        sets.add("张飞");
+        sets.add("刘备");
+        sets.add("关羽");
+
+        System.out.println(sets);//[关羽, 张飞, 刘备]
+
+    }
+}