How to Remove Non-Printable Unicode Characters in Java?

Removing Non-Printable Unicode Characters in Java

Unicode strings contain a vast range of characters, including non-printable characters that may cause issues in various applications. To remove these invisible characters effectively, Java offers a robust solution:

my_string.replaceAll("\p{C}", "?");

The pattern \p{C} targets all non-printable characters defined in Unicode. This includes control characters, format characters, and other miscellaneous symbols. By substituting these characters with a placeholder like "?", you can cleanse your string of any invisible elements that could disrupt your code or data.

Unlike previous methods that only addressed ASCII characters, this approach caters to the full spectrum of Unicode characters. It ensures that Unicode strings are free from unwanted non-printable characters, enhancing the reliability and readability of your code.

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