Replace All Non-alphanumeric in Java Using Regex

If you want to replace all non-alphanumeric using regex, you can use one of the following ways:

1

return value.replaceAll("[^A-Za-z0-9]", "");

or

1

return value.replaceAll("[\\W]|_", "");

or

1

return value.replaceAll("\\P{Alnum}", "");

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