import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Example {
public static void main(String[] args) {
final String regex = "(?(DEFINE)(?<Digit>one|two|three|four|five|six|seven|eight|nine))(?(DEFINE)(?<Teen>twenty|thirty|forty|fifty|sixty|seventy|eighty|ninety))(?(DEFINE)(?<TwoDigits>((?&Teen)-)?(?&Digit)|ten|eleven|twelve|thirteen|fourteen|fifteen|sixteen|seventeen|eighteen|nineteen|(?&Teen)))(?(DEFINE)(?<ThreeDigits>((?&Digit) hundred (and )?)?(?&TwoDigits)|(?&Digit) hundred))(?(DEFINE)(?<SixDigits>((?&ThreeDigits) thousand (and )?)?(?&ThreeDigits)|(?&ThreeDigits) thousand))(?(DEFINE)(?<TwelveDigits>((?&SixDigits) million (and )?)?(?&SixDigits)|(?&SixDigits) million))(?&TwelveDigits)";
final String string = "three\n"
+ "eleven\n"
+ "eighty-two\n"
+ "four hundred sixty-nine\n";
final Pattern pattern = Pattern.compile(regex);
final Matcher matcher = pattern.matcher(string);
while (matcher.find()) {
System.out.println("Full match: " + matcher.group(0));
for (int i = 1; i <= matcher.groupCount(); i++) {
System.out.println("Group " + i + ": " + matcher.group(i));
}
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Java, please visit: https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html