From d15ea0c281597f32b2838cb6dfcd8370beaca6d0 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Tue, 20 Jan 2026 16:29:29 +0800
Subject: [PATCH] =?UTF-8?q?day08-=E9=9D=99=E6=80=81static=E5=85=B3?=
 =?UTF-8?q?=E9=94=AE=E5=AD=97=E4=BF=AE=E9=A5=B0=E6=88=90=E5=91=98=E5=8F=98?=
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---
 day08/src/com/inmind/static02/Demo10.java  | 26 ++++++++++++++++++++++
 day08/src/com/inmind/static02/Student.java | 20 +++++++++++++++++
 2 files changed, 46 insertions(+)
 create mode 100644 day08/src/com/inmind/static02/Demo10.java
 create mode 100644 day08/src/com/inmind/static02/Student.java

diff --git a/day08/src/com/inmind/static02/Demo10.java b/day08/src/com/inmind/static02/Demo10.java
new file mode 100644
index 0000000..ac4bbff
--- /dev/null
+++ b/day08/src/com/inmind/static02/Demo10.java
@@ -0,0 +1,26 @@
+package com.inmind.static02;
+/*
+static关键字的使用：
+可以修饰成员变量和成员方法。
+1.使用static修饰成员变量的使用方式：只跟类有关，与对象无关了,并且该类的每个对象都共享了该变量的值
+静态成员变量的使用方式：
+    a.类名.静态变量名（推荐使用）
+    b.对象名.静态变量名（不推荐使用）
+ */
+public class Demo10 {
+    public static void main(String[] args) {
+        //创建2个学生对象
+        Student s1 = new Student("张三", 18, 1);
+        Student s2 = new Student("李四", 18, 1);
+        //遇到s1学生，问你上课的教室是哪一个？？
+//        System.out.println(s1.clazz);
+        System.out.println(Student.clazz);
+//        s1.clazz = "1903室";
+        Student.clazz = "1903室";
+
+        //遇到s2学生，问你上课的教室是哪一个？？
+        System.out.println(s1.clazz);
+        Student s3 = new Student();
+        System.out.println(s3.clazz);
+    }
+}
diff --git a/day08/src/com/inmind/static02/Student.java b/day08/src/com/inmind/static02/Student.java
new file mode 100644
index 0000000..8cec80d
--- /dev/null
+++ b/day08/src/com/inmind/static02/Student.java
@@ -0,0 +1,20 @@
+package com.inmind.static02;
+
+public class Student {
+    //成员变量 （每个对象单独拥有）
+    String name;
+    int age;
+    int id;
+    //静态变量（每个对象共享）
+    static String clazz;//教室，这种变量，一个修改了，所有对象的内容都要改，就应该用static
+
+    public Student(String name, int age, int id) {
+        this.name = name;
+        this.age = age;
+        this.id = id;
+    }
+
+    public Student() {
+    }
+
+}