From bf48c84d45edf782eef5b0414e1289b61be28e5c Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Tue, 6 Jan 2026 15:14:33 +0800
Subject: [PATCH] =?UTF-8?q?day10-=E6=8E=A5=E5=8F=A3interface-=E7=A7=81?=
 =?UTF-8?q?=E6=9C=89=E6=96=B9=E6=B3=95=E7=9A=84=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    | 14 +++++
 .../interface_private04/MyInterface.java      | 58 +++++++++++++++++++
 2 files changed, 72 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..3e66e7d
--- /dev/null
+++ b/day10/src/com/inmind/interface_private04/Demo04.java
@@ -0,0 +1,14 @@
+package com.inmind.interface_private04;
+/*
+JDK9中提供了私有方法的使用
+接口的私有方法定义和使用
+格式：
+    private 返回值类型 私有方法名(参数列表){
+
+    }
+
+作用：接口中私有方法的作用，是给接口中默认方法来调用的，也就是说私有方法是将默认方法中
+相同的内容抽取出来，同时静态方法也可以做相同的操作
+ */
+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..a3c2de2
--- /dev/null
+++ b/day10/src/com/inmind/interface_private04/MyInterface.java
@@ -0,0 +1,58 @@
+package com.inmind.interface_private04;
+
+public interface MyInterface {
+    //定义3个默认方法
+    public default void methodD1(){
+        /*System.out.println("1");
+        System.out.println("2");
+        System.out.println("3");*/
+        methodD4();
+    }
+     default void methodD2(){
+        /*System.out.println("1");
+        System.out.println("2");
+        System.out.println("3");*/
+         methodD4();
+    }
+     default void methodD3(){
+        /*System.out.println("1");
+        System.out.println("2");
+        System.out.println("3");*/
+         methodD4();
+    }
+
+    private  void methodD4(){
+        System.out.println("1");
+        System.out.println("2");
+        System.out.println("3");
+    }
+
+
+    private static  void methodS4(){
+        System.out.println("1");
+        System.out.println("2");
+        System.out.println("3");
+    }
+
+
+    //定义3个静态方法
+    public static void methodS1(){
+        /*System.out.println("1");
+        System.out.println("2");
+        System.out.println("3");*/
+        methodS4();
+    }
+
+     static void methodS2(){
+        /*System.out.println("1");
+        System.out.println("2");
+        System.out.println("3");*/
+         methodS4();
+    }
+     static void methodS3(){
+        /*System.out.println("1");
+        System.out.println("2");
+        System.out.println("3");*/
+         methodS4();
+    }
+}