From fe0884a99e1ed41128c8dfda05303cd73ab42897 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Sat, 10 Oct 2026 11:38:14 +0800
Subject: [PATCH] =?UTF-8?q?s-day01--Object=E7=B1=BB=E7=9A=84toString?=
 =?UTF-8?q?=E6=96=B9=E6=B3=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 s-day01/src/com/inmind/object01/Demo02.java  | 26 ++++++++++++++++++++
 s-day01/src/com/inmind/object01/Student.java | 26 ++++++++++++++++++++
 2 files changed, 52 insertions(+)
 create mode 100644 s-day01/src/com/inmind/object01/Demo02.java

diff --git a/s-day01/src/com/inmind/object01/Demo02.java b/s-day01/src/com/inmind/object01/Demo02.java
new file mode 100644
index 0000000..75c7dcd
--- /dev/null
+++ b/s-day01/src/com/inmind/object01/Demo02.java
@@ -0,0 +1,26 @@
+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
+
+String toString() 返回对象的字符串表示形式。
+
+Object类的源码：
+ public String toString() {
+        return getClass().getName() + "@" + Integer.toHexString(hashCode());
+    }
+
+注意：在实际开发中，一个对象的地址值对于我们而言，没有太大的帮助，我们程序员希望直接看到对象的内容（属性）,那怎么办？？
+现在父类object的toString方法，不符合我们需求，我们就在自己类中重写toString方法，
+
+总结：今后打印对象，如果发现打印是输出了地址，但是我们想看内容，那就应该在对应的类中重写toString，不用手动写，alt+insert自动生成即可
+
+ */
+public class Demo02 {
+    public static void main(String[] args) {
+        Student s = new Student();
+        s.setName("张三");
+        s.setAge(19);
+        System.out.println(s);//com.inmind.object01.Student@41629346
+
+    }
+}
diff --git a/s-day01/src/com/inmind/object01/Student.java b/s-day01/src/com/inmind/object01/Student.java
index 1617641..d461996 100644
--- a/s-day01/src/com/inmind/object01/Student.java
+++ b/s-day01/src/com/inmind/object01/Student.java
@@ -1,4 +1,30 @@
 package com.inmind.object01;
 
 public class Student extends Person {//直接继承person类，间接继承了Object
+    private String name;
+    private int age;
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public int getAge() {
+        return age;
+    }
+
+    public void setAge(int age) {
+        this.age = age;
+    }
+
+    @Override
+    public String toString() {
+        return "Student{" +
+                "name='" + name + '\'' +
+                ", age=" + age +
+                '}';
+    }
 }