From d65005955a2a24f62c421ea76c895f475cc1115b Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Sat, 16 May 2026 11:41:14 +0800
Subject: [PATCH] =?UTF-8?q?day08-=E5=B8=B8=E7=94=A8=E7=B1=BB=5FString?=
 =?UTF-8?q?=E7=9A=84=E6=A6=82=E8=BF=B0=E5=92=8C=E7=89=B9=E7=82=B9?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 .../src/com/inmind/string01/StringDemo01.java | 26 ++++++++
 day08/src/com/inmind/string01/Student.java    | 66 +++++++++++++++++++
 2 files changed, 92 insertions(+)
 create mode 100644 day08/src/com/inmind/string01/StringDemo01.java
 create mode 100644 day08/src/com/inmind/string01/Student.java

diff --git a/day08/src/com/inmind/string01/StringDemo01.java b/day08/src/com/inmind/string01/StringDemo01.java
new file mode 100644
index 0000000..89d56b5
--- /dev/null
+++ b/day08/src/com/inmind/string01/StringDemo01.java
@@ -0,0 +1,26 @@
+package com.inmind.string01;
+/*
+常用类_String的概述和特点
+1.String类代表字符串。 Java程序中的所有字符串文字（例如"abc" ）都被实现为此类的实例。
+""双引号字符串就是String类的对象，所以就可以直接调用String类的方法
+2.字符串不变; 它们的值在创建后不能被更改。 因为String对象是不可变的，它们可以被共享。
+
+ */
+public class StringDemo01 {
+    public static void main(String[] args) {
+        //创建2个学生对象
+        Student s1 = new Student("小王", 18);
+        Student s2 = new Student("小王", 18);
+        System.out.println(s1);
+        System.out.println(s2);
+        System.out.println(s1 == s2);//false 注意：引用数据类型中保存的是地址，当前地址不同
+
+        //定义2个字符串对象
+        String str1 = "abc";//str1中保存是地址，所有引用数据类型，保存的永远是地址！！！
+        System.out.println(str1);//这里由于String类的底层源码重写了toString方法，所以打印的是对应地址指向的内容
+
+        String str2 = "abc";
+        System.out.println(str1 == str2);//true
+
+    }
+}
diff --git a/day08/src/com/inmind/string01/Student.java b/day08/src/com/inmind/string01/Student.java
new file mode 100644
index 0000000..f58ecdc
--- /dev/null
+++ b/day08/src/com/inmind/string01/Student.java
@@ -0,0 +1,66 @@
+package com.inmind.string01;
+
+
+public class Student {
+    private String name;
+    private int age = 18;
+    private int id;
+    private String gender;
+    private double score;
+
+
+    public Student(){
+        //对所有的属性设置默认值
+    }
+
+    public Student(String name){
+        //针对指定的属性赋值，其他的属性默认
+        this.name = name;
+    }
+
+    public Student(String name, int age){
+        //针对指定的属性赋值，其他的属性默认
+        this.name = name;
+        this.age = 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;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String getGender() {
+        return gender;
+    }
+
+    public void setGender(String gender) {
+        this.gender = gender;
+    }
+
+    public double getScore() {
+        return score;
+    }
+
+    public void setScore(double score) {
+        this.score = score;
+    }
+}