From 2fcec5ec7509a702b29cabc1680e56bb9382dfa5 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Thu, 2 Apr 2026 15:06:30 +0800
Subject: [PATCH] =?UTF-8?q?=E8=BF=9B=E9=98=B6day12-=E6=9E=9A=E4=B8=BE?=
 =?UTF-8?q?=E7=9A=84=E5=9F=BA=E6=9C=AC=E5=AE=9A=E4=B9=89?=
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---
 .../src/com/inmind/enum04/Demo11.java         | 24 +++++++++++++++++++
 javaSE-day12/src/com/inmind/enum04/EnumA.java | 21 ++++++++++++++++
 2 files changed, 45 insertions(+)
 create mode 100644 javaSE-day12/src/com/inmind/enum04/Demo11.java
 create mode 100644 javaSE-day12/src/com/inmind/enum04/EnumA.java

diff --git a/javaSE-day12/src/com/inmind/enum04/Demo11.java b/javaSE-day12/src/com/inmind/enum04/Demo11.java
new file mode 100644
index 0000000..ee10cac
--- /dev/null
+++ b/javaSE-day12/src/com/inmind/enum04/Demo11.java
@@ -0,0 +1,24 @@
+package com.inmind.enum04;
+/*
+enum是一种特殊的类
+1.枚举类的第一行只能罗列一些名称，这些名称都是常量,并且每个常量都是该枚举类的一个对象（枚举常量本质上就是该枚举类型的实例对象，编译器
+会自动为它添加上public static final修饰符）
+2.枚举类的构造方法都是私有的，因为枚举类对外不能创建对象
+3.枚举类都是最终类，不能被继承
+4.枚举类中，第二行开始，可以定义类的各种成员
+5.编译器为枚举类新增了几个方法，并且枚举类都是继承java.lang.Enum类的，从enum类会继承一些方法
+
+枚举的作用：就是一个长度有限，内容固定的常量集合，限制传入的操作
+ */
+public class Demo11 {
+    public static void main(String[] args) {
+        EnumA enum1 = EnumA.A;
+        EnumA enum2 = EnumA.B;
+        EnumA enum3 = EnumA.C;
+
+
+        System.out.println(enum3.name());
+        System.out.println(enum3.ordinal());
+        System.out.println(enum3.getName());
+    }
+}
diff --git a/javaSE-day12/src/com/inmind/enum04/EnumA.java b/javaSE-day12/src/com/inmind/enum04/EnumA.java
new file mode 100644
index 0000000..5ac7567
--- /dev/null
+++ b/javaSE-day12/src/com/inmind/enum04/EnumA.java
@@ -0,0 +1,21 @@
+package com.inmind.enum04;
+
+public enum EnumA {
+     A,B,C;
+//     A("张三"),B,C("王五");
+     private String name;
+     EnumA(String name){
+        this.name = name;
+     }
+
+    EnumA(){
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}