regex last word

package regex;

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

public class Main {

    public static void main(String[] args) {
        String matchesLastWordFine = "a b cd efg hi";
        lastWord(matchesLastWordFine);
        String noMatchFound = matchesLastWordFine + ".";
        lastWord(noMatchFound);
    }

    private static void lastWord(String sentence) {
        System.out.println("\n\ntrying\n" + sentence + "\nmatches:");
        Pattern pattern = Pattern.compile("(\\w+)$");
        Matcher matcher = pattern.matcher(sentence);
        String match = null;
        while (matcher.find()) {
            match = matcher.group();
            System.out.println(match);
        }
    }
}