From e0e87886c00ae2ad3a144af00fd9885ec1931d05 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Tue, 10 Mar 2026 15:26:31 +0800
Subject: [PATCH] =?UTF-8?q?=E8=BF=9B=E9=98=B6day06-=E8=87=AA=E5=AE=9A?=
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---
 .../com/inmind/functional_interface02/Demo04.java  | 14 ++++++++++++++
 .../inmind/functional_interface02/MyInterface.java |  6 ++++++
 2 files changed, 20 insertions(+)
 create mode 100644 javaSE-day07/src/com/inmind/functional_interface02/Demo04.java
 create mode 100644 javaSE-day07/src/com/inmind/functional_interface02/MyInterface.java

diff --git a/javaSE-day07/src/com/inmind/functional_interface02/Demo04.java b/javaSE-day07/src/com/inmind/functional_interface02/Demo04.java
new file mode 100644
index 0000000..6ed600c
--- /dev/null
+++ b/javaSE-day07/src/com/inmind/functional_interface02/Demo04.java
@@ -0,0 +1,14 @@
+package com.inmind.functional_interface02;
+/*
+学习的内容：函数式接口的概念
+函数式接口在Java中是指：有且仅有一个抽象方法的接口。(今后自定义的主要的情况)
+函数式接口:有且仅有一个必须被重写的抽象方法的接口.
+
+注意:在java使用一个注解@FunctionalInterface来验证指定的接口是否是函数式接口
+
+扩展:为何在一个接口中某些抽象方法不需要被重写??比如Comparator接口
+在一个类中如果单继承和多实现,单继承的方法优先级高于接口中的方法定义,导致父类方法中
+如果有跟接口中重名的方法实现的话,那么就相当于在子类中默认重写了接口的方法
+ */
+public class Demo04 {
+}
diff --git a/javaSE-day07/src/com/inmind/functional_interface02/MyInterface.java b/javaSE-day07/src/com/inmind/functional_interface02/MyInterface.java
new file mode 100644
index 0000000..a6a5de6
--- /dev/null
+++ b/javaSE-day07/src/com/inmind/functional_interface02/MyInterface.java
@@ -0,0 +1,6 @@
+package com.inmind.functional_interface02;
+
+@FunctionalInterface
+public interface MyInterface {
+    int getSum(int a,int b);
+}