From 2d70342f3e12d581107386fbd1257c12b814c343 Mon Sep 17 00:00:00 2001
From: qith <from_qith@163.com>
Date: Mon, 27 Sep 2021 22:21:53 +0800
Subject: [PATCH] 20210927

---
 interfaces/music5/Music5.java | 1 +
 1 file changed, 1 insertion(+)

diff --git a/interfaces/music5/Music5.java b/interfaces/music5/Music5.java
index 775e656b8..8322d68c0 100644
--- a/interfaces/music5/Music5.java
+++ b/interfaces/music5/Music5.java
@@ -18,6 +18,7 @@ default void adjust() {
 }
 
 class Wind implements Instrument {
+  // toString() 是根基类 Object 的方法，所以它不需要出现在接口中。
   @Override public String toString() {
     return "Wind";
   }