From 1cdf61c5a56f8db2cca21ad553e884167069c6c6 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Sat, 8 Aug 2026 13:40:54 +0800
Subject: [PATCH] =?UTF-8?q?s-day07-Consumer=E7=9A=84andThen=E6=96=B9?=
 =?UTF-8?q?=E6=B3=95?=
MIME-Version: 1.0
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---
 .../inmind/functional_consumer03/Demo06.java  | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 s-day07/src/com/inmind/functional_consumer03/Demo06.java

diff --git a/s-day07/src/com/inmind/functional_consumer03/Demo06.java b/s-day07/src/com/inmind/functional_consumer03/Demo06.java
new file mode 100644
index 0000000..5104c0f
--- /dev/null
+++ b/s-day07/src/com/inmind/functional_consumer03/Demo06.java
@@ -0,0 +1,26 @@
+package com.inmind.functional_consumer03;
+
+import java.util.function.Consumer;
+
+/*
+    default Consumer<T> andThen(Consumer after) 返回一个组成的 Consumer ，依次执行此操作，然后执行 after操作
+
+    需求：我要使用消费者接口，对同一个字符串进行大写，和小写的消费操作
+    分析：
+        1.一个消费者的消费操作：对字符串进行小写打印
+        2.另一个消费者的消费操作：对字符串进行大写打印
+ */
+public class Demo06 {
+    public static void main(String[] args) {
+        printStr(
+                s -> System.out.println(s.toLowerCase()),
+                s-> System.out.println(s.toUpperCase()),
+                "aBcD");
+    }
+
+    public static void printStr(Consumer<String> consumer1, Consumer<String> consumer2, String s) {
+        /*consumer1.accept(s);
+        consumer2.accept(s);*/
+        consumer1.andThen(consumer2).accept(s);
+    }
+}