Lecture d'un string jusqu'arriver à un entier

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class MyTestRegex {
public static void main(String args[]) {


    String line = "testtesttest123testtesttesttesttest"; 
    String pattern = ".*?(\d+).*";

    Pattern r = Pattern.compile(pattern);
    Matcher m = r.matcher(line);

    if (m.find()) {
        System.out.println("Found: " + m.group(1));
    } else {
        System.out.println("not found");
    }
  }
}