Is Java RegEx case-insensitive?

Question

In Java, when doing a replaceAll to look for a regex pattern like:

replaceAll(\"\\\\?i\\\\b(\\\\w+)\\\\b(\\\\s+\\\\1)+\\\\b\", \"$1\"); 

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Answer 1

You also can lead your initial string, which you are going to check for pattern matching, to lower case. And use in your pattern lower case symbols respectively.