From adf732c3138236a9004d33df1483a6a72db39656 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Wed, 5 Aug 2026 11:03:30 +0800
Subject: [PATCH] =?UTF-8?q?s-day05-=E7=BB=A7=E6=89=BF=E5=85=B3=E7=B3=BB?=
 =?UTF-8?q?=E4=B8=AD=E5=BC=82=E5=B8=B8=E7=9A=84=E5=A4=84=E7=90=86=EF=BC=88?=
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MIME-Version: 1.0
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---
 .../inmind/extends_exception03/Demo09.java    | 16 ++++++++++++++++
 .../com/inmind/extends_exception03/Fu.java    | 13 +++++++++++++
 .../com/inmind/extends_exception03/Zi.java    | 19 +++++++++++++++++++
 3 files changed, 48 insertions(+)
 create mode 100644 s-day05/src/com/inmind/extends_exception03/Demo09.java
 create mode 100644 s-day05/src/com/inmind/extends_exception03/Fu.java
 create mode 100644 s-day05/src/com/inmind/extends_exception03/Zi.java

diff --git a/s-day05/src/com/inmind/extends_exception03/Demo09.java b/s-day05/src/com/inmind/extends_exception03/Demo09.java
new file mode 100644
index 0000000..af7ff3a
--- /dev/null
+++ b/s-day05/src/com/inmind/extends_exception03/Demo09.java
@@ -0,0 +1,16 @@
+package com.inmind.extends_exception03;
+
+/*
+继承关系中异常的处理的注意点：
+如果父类方法声明出一编译异常，子类重写时如果不调用父类方法，可以不处理
+如果父类方法声明出一编译异常，子类重写时想要声明出异常时，子类方法只能声明出父类的异常或该异常的子类
+父类方法没有声明异常，子类重写父类该方法时也不可声明异常。此时子类中的异常只能try-catch
+以上三点事项只适用于编译时异常，如果是运行时异常，不受任何影响
+
+
+总结：
+1.编译时异常：强制使用功能时，必须处理指定异常，常用于调用第三方功能代码时的限制
+2.运行时异常，不强制必须处理，常用于程序中的业务功能处理(我们经常会用运行时异常)
+ */
+public class Demo09 {
+}
diff --git a/s-day05/src/com/inmind/extends_exception03/Fu.java b/s-day05/src/com/inmind/extends_exception03/Fu.java
new file mode 100644
index 0000000..8e55160
--- /dev/null
+++ b/s-day05/src/com/inmind/extends_exception03/Fu.java
@@ -0,0 +1,13 @@
+package com.inmind.extends_exception03;
+
+import java.io.IOException;
+
+public class Fu {
+    public void method() throws IOException {
+        System.out.println("父类方法");
+    }
+
+    public void method1(){
+        System.out.println("父类方法1");
+    }
+}
diff --git a/s-day05/src/com/inmind/extends_exception03/Zi.java b/s-day05/src/com/inmind/extends_exception03/Zi.java
new file mode 100644
index 0000000..9104f2b
--- /dev/null
+++ b/s-day05/src/com/inmind/extends_exception03/Zi.java
@@ -0,0 +1,19 @@
+package com.inmind.extends_exception03;
+
+import java.io.FileNotFoundException;
+
+public class Zi extends Fu{
+    @Override
+    public void method()  throws FileNotFoundException {
+        //super.method();沿袭（调用父类方法）
+    }
+
+    @Override
+    public void method1() throws RuntimeException {
+        try {
+            throw new Exception();
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+}