From 733193324f50c7480ebc7a9ffaf6bd32ddeda155 Mon Sep 17 00:00:00 2001
From: guide <koushuangbwcx@163.com>
Date: Sun, 23 Aug 2020 11:10:05 +0800
Subject: [PATCH] =?UTF-8?q?[fix]=E6=9E=9A=E4=B8=BE=E9=82=A3=E7=AF=87?=
 =?UTF-8?q?=E6=96=87=E7=AB=A0=E7=9A=84EnumMap=E7=9A=84groupPizzaByStatus?=
 =?UTF-8?q?=E6=96=B9=E6=B3=95=E6=9C=89=E9=97=AE=E9=A2=98?=
MIME-Version: 1.0
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---
 ...ava中的枚举真的没有那么简单.md | 25 ++++++++-----------
 1 file changed, 10 insertions(+), 15 deletions(-)

diff --git a/docs/java/basic/用好Java中的枚举真的没有那么简单.md b/docs/java/basic/用好Java中的枚举真的没有那么简单.md
index 20b02297..8067934c 100644
--- a/docs/java/basic/用好Java中的枚举真的没有那么简单.md
+++ b/docs/java/basic/用好Java中的枚举真的没有那么简单.md
@@ -257,22 +257,17 @@ EnumMap<Pizza.PizzaStatus, Pizza> map;
 让我们快速看一个真实的示例，该示例演示如何在实践中使用它：
 
 ```java
-public static EnumMap<PizzaStatus, List<Pizza>> 
-  groupPizzaByStatus(List<Pizza> pizzaList) {
-    EnumMap<PizzaStatus, List<Pizza>> pzByStatus = 
-      new EnumMap<PizzaStatus, List<Pizza>>(PizzaStatus.class);
-     
-    for (Pizza pz : pizzaList) {
-        PizzaStatus status = pz.getStatus();
-        if (pzByStatus.containsKey(status)) {
-            pzByStatus.get(status).add(pz);
-        } else {
-            List<Pizza> newPzList = new ArrayList<Pizza>();
-            newPzList.add(pz);
-            pzByStatus.put(status, newPzList);
-        }
+Iterator<Pizza> iterator = pizzaList.iterator();
+while (iterator.hasNext()) {
+    Pizza pz = iterator.next();
+    PizzaStatus status = pz.getStatus();
+    if (pzByStatus.containsKey(status)) {
+      pzByStatus.get(status).add(pz);
+    } else {
+      List<Pizza> newPzList = new ArrayList<>();
+      newPzList.add(pz);
+      pzByStatus.put(status, newPzList);
     }
-    return pzByStatus;
 }
 ```