From 25616dcc324f20ec86a28ec7c16652c1341e1355 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Sat, 10 Oct 2026 11:20:48 +0800
Subject: [PATCH] =?UTF-8?q?s-day01--Object=E6=A6=82=E8=BF=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 s-day01/src/com/inmind/object01/Demo01.java  | 12 ++++++++++++
 s-day01/src/com/inmind/object01/Person.java  |  4 ++++
 s-day01/src/com/inmind/object01/Student.java |  4 ++++
 3 files changed, 20 insertions(+)
 create mode 100644 s-day01/src/com/inmind/object01/Demo01.java
 create mode 100644 s-day01/src/com/inmind/object01/Person.java
 create mode 100644 s-day01/src/com/inmind/object01/Student.java

diff --git a/s-day01/src/com/inmind/object01/Demo01.java b/s-day01/src/com/inmind/object01/Demo01.java
new file mode 100644
index 0000000..5edd7cb
--- /dev/null
+++ b/s-day01/src/com/inmind/object01/Demo01.java
@@ -0,0 +1,12 @@
+package com.inmind.object01;
+/*
+Object类:所有类的父类，java中所有的类直接或者间接继承自Object
+ */
+public class Demo01 {
+    public static void main(String[] args) {
+        Student s = new Student();
+        System.out.println(s.toString());
+        System.out.println(s.hashCode());
+    }
+
+}
diff --git a/s-day01/src/com/inmind/object01/Person.java b/s-day01/src/com/inmind/object01/Person.java
new file mode 100644
index 0000000..fee5096
--- /dev/null
+++ b/s-day01/src/com/inmind/object01/Person.java
@@ -0,0 +1,4 @@
+package com.inmind.object01;
+
+public class Person extends Object{//直接继承Object
+}
diff --git a/s-day01/src/com/inmind/object01/Student.java b/s-day01/src/com/inmind/object01/Student.java
new file mode 100644
index 0000000..1617641
--- /dev/null
+++ b/s-day01/src/com/inmind/object01/Student.java
@@ -0,0 +1,4 @@
+package com.inmind.object01;
+
+public class Student extends Person {//直接继承person类，间接继承了Object
+}