Question

Using java.util.regex.Matcher, are the following expressions for matched1 and matched2 equivalent? Is there a simpler way to get a value for matched?

StringBuilder b = ...
Pattern p = ...
Matcher m = p.matcher(b);
m.find();


String matched1 = b.substring(m.start(), m.end());

String matched2 = m.group();

Answer 1

Yes, they are equivalent, and no, there is no simpler way.

I’d prefer the .group() approach; perhaps wrapped in an if (m.find()) conditional.