From a85b7d80a24a1632ee8d85eec24356c87097d409 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Mon, 26 Jan 2026 11:36:05 +0800
Subject: [PATCH] =?UTF-8?q?=E8=BF=9B=E9=98=B6day01-Object=E7=B1=BB?=
 =?UTF-8?q?=E7=9A=84toString=E6=96=B9=E6=B3=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../src/com/inmind/object01/Demo01.java       | 45 +++++++++++++++++++
 .../src/com/inmind/object01/Person.java       | 15 +++++++
 .../src/com/inmind/object01/Student.java      | 12 +++++
 3 files changed, 72 insertions(+)
 create mode 100644 javaSE-day01/src/com/inmind/object01/Demo01.java
 create mode 100644 javaSE-day01/src/com/inmind/object01/Person.java
 create mode 100644 javaSE-day01/src/com/inmind/object01/Student.java

diff --git a/javaSE-day01/src/com/inmind/object01/Demo01.java b/javaSE-day01/src/com/inmind/object01/Demo01.java
new file mode 100644
index 0000000..5ecea24
--- /dev/null
+++ b/javaSE-day01/src/com/inmind/object01/Demo01.java
@@ -0,0 +1,45 @@
+package com.inmind.object01;
+/*
+    Object:是所有类的父类,java中所有的类直接或者间接继承自Object
+
+    ----------------------------------------------------------
+
+    /*
+    2.Object类的toString方法
+        String toString() 返回对象的字符串表示形式。
+
+        Object类的toString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
+        该对象的内容(属性)，那怎么办呢？？？
+
+        现在父类的toString功能,不符合子类的需求,那么我们就可以在对应的子类中重写toString
+
+        总结:今后打印对象时,如果发现打印时输出了地址,但是我们想看属性内容,应该在该对象的类中重写toString，不用手动写，alt+insert自动生成即可
+ */
+
+
+
+public class Demo01 {
+    public static void main(String[] args) {
+        Person p = new Person();
+        Student s = new Student();
+        /*
+        打印对象和对象的toString方法有什么关系
+
+        打印对象，就是将对象的toString方法的内容，返回（com.inmind.object01.Person@41629346）
+
+        但是Object的toString的实现，不符合子类的需求，所以我们可以重写toString，实现只看内容不看地址
+
+         */
+        p.name = "张三";
+        p.age = 20;
+        System.out.println(p);
+        s.name = "李四";
+        s.age = 21;
+        System.out.println(s);
+    }
+}
diff --git a/javaSE-day01/src/com/inmind/object01/Person.java b/javaSE-day01/src/com/inmind/object01/Person.java
new file mode 100644
index 0000000..03c395f
--- /dev/null
+++ b/javaSE-day01/src/com/inmind/object01/Person.java
@@ -0,0 +1,15 @@
+package com.inmind.object01;
+
+public class Person {
+    String name;
+    int age;
+
+
+    @Override
+    public String toString() {
+        return "Person{" +
+                "name='" + name + '\'' +
+                ", age=" + age +
+                '}';
+    }
+}
diff --git a/javaSE-day01/src/com/inmind/object01/Student.java b/javaSE-day01/src/com/inmind/object01/Student.java
new file mode 100644
index 0000000..2bf66ee
--- /dev/null
+++ b/javaSE-day01/src/com/inmind/object01/Student.java
@@ -0,0 +1,12 @@
+package com.inmind.object01;
+
+public class Student extends Person{
+
+    @Override
+    public String toString() {
+        return "Student{" +
+                "name='" + name + '\'' +
+                ", age=" + age +
+                '}';
+    }
+}