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2023-07-26 16:14:40 +08:00 · 2023-07-26 16:14:40 +08:00 · fca0f32ab7
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 - [Compact Strings in Java 9](https://www.baeldung.com/java-9-compact-string)
 - [Split a String Into Digit and Non-Digit Substrings](https://www.baeldung.com/java-split-string-digits-letters)
 - [Check if a String Contains Non-Alphanumeric Characters](https://www.baeldung.com/java-string-test-special-characters)
+- [Check if a String Has All Unique Characters in Java](https://www.baeldung.com/java-check-string-all-unique-chars)