From b82dafad8a4091acbf754b60953934caf49f8735 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Tue, 13 Oct 2026 15:14:56 +0800
Subject: [PATCH] =?UTF-8?q?s-day02--=E6=B3=9B=E5=9E=8B=E7=B1=BB=E7=9A=84?=
 =?UTF-8?q?=E4=BD=BF=E7=94=A8?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 s-day02/src/com/inmind/generic02/Demo05.java  | 19 +++++++++++++++++
 s-day02/src/com/inmind/generic02/Factory.java | 21 +++++++++++++++++++
 s-day02/src/com/inmind/generic02/Pad.java     | 13 ++++++++++++
 s-day02/src/com/inmind/generic02/Phone.java   | 13 ++++++++++++
 4 files changed, 66 insertions(+)
 create mode 100644 s-day02/src/com/inmind/generic02/Demo05.java
 create mode 100644 s-day02/src/com/inmind/generic02/Factory.java
 create mode 100644 s-day02/src/com/inmind/generic02/Pad.java
 create mode 100644 s-day02/src/com/inmind/generic02/Phone.java

diff --git a/s-day02/src/com/inmind/generic02/Demo05.java b/s-day02/src/com/inmind/generic02/Demo05.java
new file mode 100644
index 0000000..ef9a15a
--- /dev/null
+++ b/s-day02/src/com/inmind/generic02/Demo05.java
@@ -0,0 +1,19 @@
+package com.inmind.generic02;
+
+public class Demo05 {
+    public static void main(String[] args) {
+        //买了平板与手机，质保，找专门的厂家去修理
+        Pad pad = new Pad();
+        System.out.println("平板坏了");
+        Factory<Pad> padFactory = new Factory<>();
+        Pad fixedPad = padFactory.fix(pad);
+        fixedPad.study();
+
+        Phone phone = new Phone();
+        System.out.println("手机坏了");
+        Factory<Phone> phoneFactory = new Factory<>();
+        Phone fixedPhone = phoneFactory.fix(phone);
+        fixedPhone.playApp();
+
+    }
+}
diff --git a/s-day02/src/com/inmind/generic02/Factory.java b/s-day02/src/com/inmind/generic02/Factory.java
new file mode 100644
index 0000000..a3069b4
--- /dev/null
+++ b/s-day02/src/com/inmind/generic02/Factory.java
@@ -0,0 +1,21 @@
+package com.inmind.generic02;
+/*
+    能不能在一个类中定义一个未知的类型，接收的具体是什么类型，就返回该类型，这个数据类型要动态，并省略掉强转操作，避免了
+    类型转换异常？？？
+    可以，使用泛型类，在类名后加上<大写字母>
+
+    泛型类的格式：
+    public class 类名<大写字母>
+
+    泛型类的T类型，何时确定的呢？？？
+    创建对象时确定该类型
+
+ */
+public class Factory <T>{
+
+    //修理T类型的设备即可
+    public T fix(T t) {
+        System.out.println("工厂修理了设备"+t);
+        return t;
+    }
+}
diff --git a/s-day02/src/com/inmind/generic02/Pad.java b/s-day02/src/com/inmind/generic02/Pad.java
new file mode 100644
index 0000000..84751d0
--- /dev/null
+++ b/s-day02/src/com/inmind/generic02/Pad.java
@@ -0,0 +1,13 @@
+package com.inmind.generic02;
+
+public class Pad {
+
+    public void study(){
+        System.out.println("使用平板来学习");
+    }
+
+    @Override
+    public String toString() {
+        return "小米平板";
+    }
+}
diff --git a/s-day02/src/com/inmind/generic02/Phone.java b/s-day02/src/com/inmind/generic02/Phone.java
new file mode 100644
index 0000000..d5c4684
--- /dev/null
+++ b/s-day02/src/com/inmind/generic02/Phone.java
@@ -0,0 +1,13 @@
+package com.inmind.generic02;
+
+public class Phone {
+
+    public void playApp(){
+        System.out.println("手机在玩应用");
+    }
+
+    @Override
+    public String toString() {
+        return "苹果手机";
+    }
+}