Question

For example I have such a string, in which I must find and replace multiple substrings, all of which start with #, contains 6 symbols, end with ' and should not contain ) … what do you think would be the best way of achieving that?

Thanks!

Edit:
just one more thing I forgot, to make the replacement, I need that substring, i.e. it gets replaces by a string generated from the substring being replaced.

Answer 1

yourNewText=yourOldText.replaceAll("#[^)]{6}'", "");

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Or programmatically:

Matcher matcher = Pattern.compile("#[^)]{6}'").matcher(yourOldText);
StringBuffer sb = new StringBuffer();
while(matcher.find()){
    matcher.appendReplacement(sb, 
      // implement your custom logic here, matcher.group() is the found String
      someReplacement(matcher.group());
}
matcher.appendTail(sb);
String yourNewString = sb. toString();