From dfced7ea6e45c74edfe59dc64bb0773dfc14e20c Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Thu, 8 Oct 2026 13:53:38 +0800
Subject: [PATCH] =?UTF-8?q?day10--=E6=8E=A5=E5=8F=A3=E7=9A=84=E7=A7=81?=
 =?UTF-8?q?=E6=9C=89=E6=96=B9=E6=B3=95=E7=9A=84=E5=AE=9A=E4=B9=89=E5=92=8C?=
 =?UTF-8?q?=E4=BD=BF=E7=94=A8?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../inmind/interface_private04/Demo04.java    |  4 ++
 .../interface_private04/MyInterface.java      | 47 +++++++++++++++++++
 2 files changed, 51 insertions(+)
 create mode 100644 day10/src/com/inmind/interface_private04/Demo04.java
 create mode 100644 day10/src/com/inmind/interface_private04/MyInterface.java

diff --git a/day10/src/com/inmind/interface_private04/Demo04.java b/day10/src/com/inmind/interface_private04/Demo04.java
new file mode 100644
index 0000000..8f38c9c
--- /dev/null
+++ b/day10/src/com/inmind/interface_private04/Demo04.java
@@ -0,0 +1,4 @@
+package com.inmind.interface_private04;
+
+public class Demo04 {
+}
diff --git a/day10/src/com/inmind/interface_private04/MyInterface.java b/day10/src/com/inmind/interface_private04/MyInterface.java
new file mode 100644
index 0000000..7f21d01
--- /dev/null
+++ b/day10/src/com/inmind/interface_private04/MyInterface.java
@@ -0,0 +1,47 @@
+package com.inmind.interface_private04;
+
+/*
+既有默认方法，和静态方法，有可能出现在一个接口中有很多这些方法
+
+接口的私有方法的作用：对接口中默认方法来调用的，可以将相同的重复的功能代码进行抽取优化，也可以对静态方法进行抽取
+
+私有方法的定义格式：
+    private (static) 返回值类型 方法名(参数列表) {
+        java方法体
+    }
+ */
+public interface MyInterface {
+    public default void defaultMethod1(){
+        sameMethod();
+        System.out.println("defaultMethod1");
+    }
+
+    public default void defaultMethod2(){
+        sameMethod();
+        System.out.println("defaultMethod2");
+    }
+
+    private void sameMethod(){
+        System.out.println("代码1");
+        System.out.println("代码2");
+        System.out.println("代码3");
+        System.out.println("代码4");
+    }
+
+    public static void staticMethod1(){
+        sameStaticMethod();
+        System.out.println("defaultMethod1");
+    }
+
+    public static void staticMethod2(){
+        sameStaticMethod();
+        System.out.println("defaultMethod2");
+    }
+
+    private static void sameStaticMethod(){
+        System.out.println("代码1");
+        System.out.println("代码2");
+        System.out.println("代码3");
+        System.out.println("代码4");
+    }
+}