[Solved] How do you extract a substring from a string based on an input regex [closed]

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Build a regexp like this :

.+?(r).*

where r is you regexp.

Java Code

String s;// Your string
String r;// Your regexp
Pattern p = Pattern.compile(String.format(".+?(%s).*",r));
Matcher m = p.matcher(s);

if (m.find()) {
    System.out.println(m.group(1));
}

Note
I assume your regexp will be matched only one time in your string s.

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solved How do you extract a substring from a string based on an input regex [closed]