From cd3cc5289bf7a49c5579ae351998a3638ec093d3 Mon Sep 17 00:00:00 2001
From: Diesel Niu <niu853273494@qq.com>
Date: Sun, 17 Jan 2021 15:36:07 +0800
Subject: [PATCH] Update RemoveDuplicateCharsInString.java

---
 .../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..f954f8d 100644
--- a/src/main/java/com/github/hcsp/collection/RemoveDuplicateCharsInString.java
+++ b/src/main/java/com/github/hcsp/collection/RemoveDuplicateCharsInString.java
@@ -1,5 +1,6 @@
 package com.github.hcsp.collection;
 
+import java.util.LinkedHashSet;
 import java.util.HashSet;
 
 public class RemoveDuplicateCharsInString {
@@ -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));
         }