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import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Main {
public static void main(String[] argv) throws Exception {
String inputStr = "abbabcd";
String patternStr = "(a(?:b*))+(c*)";
// (?:b*) is a non-capturing group
Pattern pattern = Pattern.compile(patternStr);
Matcher matcher = pattern.matcher(inputStr);
boolean matchFound = matcher.find();
if (matchFound) {
for (int i = 0; i <= matcher.groupCount(); i++) {
String groupStr = matcher.group(i);
}
}
}
}
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