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

public class Matching_Zipcode {

    public static void main(String args[]) {
        matchZip("45643");
        matchZip("45643-44435");

    }
    public static boolean matchZip(String zip) {
        boolean retrival = false;
        String zipCode = "\\d{5}(-\\d{4})?";
        retrival = zip.matches(zipCode);

        String msg = "NO MATCH: Zip code is:" + zip +
                "\n regex for the Zip code is: " + zipCode;

        if (retrival) {
            msg = "MATCH   : Zip code is :" + zip + 
                    "\n regex for the Zip code is : " + zipCode;
        }

        System.out.println(msg + "\n");
        return retrival;
    }
}