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convert HashSet to LinkedHashSet #49

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convert HashSet to LinkedHashSet #49

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2 changes: 1 addition & 1 deletion src/main/java/com/github/hcsp/collection/RemoveDuplicateCharsInString.java
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,7 @@ 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));
}
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