From 127b98c8610d1da6f09c6bf3bb603e033b2d19fd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E2=80=9Cidpeng=E2=80=9D?= <630606938@qq.com>
Date: Tue, 14 Sep 2021 11:31:06 +0800
Subject: [PATCH] =?UTF-8?q?=E7=94=A8LinkedHashSet=E4=BF=9D=E8=AF=81?=
 =?UTF-8?q?=E9=A1=BA=E5=BA=8F=E4=B8=80=E8=87=B4?=
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---
 .../github/hcsp/collection/RemoveDuplicateCharsInString.java   | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/main/java/com/github/hcsp/collection/RemoveDuplicateCharsInString.java b/src/main/java/com/github/hcsp/collection/RemoveDuplicateCharsInString.java
index cae1919..92ff7d1 100644
--- a/src/main/java/com/github/hcsp/collection/RemoveDuplicateCharsInString.java
+++ b/src/main/java/com/github/hcsp/collection/RemoveDuplicateCharsInString.java
@@ -1,6 +1,7 @@
 package com.github.hcsp.collection;
 
 import java.util.HashSet;
+import java.util.LinkedHashSet;
 
 public class RemoveDuplicateCharsInString {
     // 修改这个方法使得它能够输出正确结果：
@@ -8,7 +9,7 @@ public class RemoveDuplicateCharsInString {
     // 输入ccbbaa返回cba
     // 输入apple返回aple
     public static String removeDuplicateCharsInString(String s) {
-        HashSet<Character> charSet = new HashSet<>();
+        HashSet<Character> charSet = new LinkedHashSet<>();
         for (int i = 0; i < s.length(); i++) {
             charSet.add(s.charAt(i));
         }