Digit as Word

public class Main {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String word = scanner.nextLine();

        switch (word) {
            case "0":
                System.out.println("zero");
                break;
            case "1":
                System.out.println("one");
                break;
            case "2":
                System.out.println("two");
                break;
            case "3":
                System.out.println("three");
                break;
            case "4":
                System.out.println("four");
                break;
            case "5":
                System.out.println("five");
                break;
            case "6":
                System.out.println("six");
                break;
            case "7":
                System.out.println("seven");
                break;
            case "8":
                System.out.println("eight");
                break;
            case "9":
                System.out.println("nine");
                break;
            default:
                System.out.println("not a digit");

        }
    }
}