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BAEL-6841 (#14502) 

Improvement article - "Check if a String Has All Unique Characters in Java"
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parthiv39731 2023-08-01 15:22:01 +05:30 committed by GitHub
parent b35f655796
commit 8f344ca0f7
1 changed files with 4 additions and 2 deletions
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6
core-java-modules/core-java-string-operations-6/src/main/java/com/baeldung/uniquecharcheck/UniqueCharChecker.java
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@ -34,9 +34,11 @@ public class UniqueCharChecker {
char[] chars = str.toUpperCase().toCharArray(); char[] chars = str.toUpperCase().toCharArray();
Set <Character> set = new HashSet <>(); Set <Character> set = new HashSet <>();
for (char c: chars) { for (char c: chars) {
set.add(c); if (!set.add(c)) {
return false;
} }
return set.size() == str.length(); }
return true;
} }
public static boolean useStreamCheck(String str) { public static boolean useStreamCheck(String str) {