What is the use of Pattern.quote method?

Question

I\'m trying to understand Pattern.quote using the following code:

String pattern = Pattern.quote("1252343% 8 567 hdfg gf^$545");
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Answer 1

The Pattern.quote method quotes part of a regex pattern to make regex interpret it as string literals.

Say you have some user input in your search program, and you want to regex for it. But this input may have unsafe characters so you can use

Pattern pattern = Pattern.compile(Pattern.quote(userInput));

This method does not quote a Pattern but, as you point out, wraps a String in regex quotes.