Solution Review: Playing With Strings

class challenge_four {
    public static String test(String x) {

        if (x.length() % 2 == 0) {
            return x.toUpperCase();
        }

        return x.toLowerCase();
    }
    public static void main( String args[] ) {
        String odd = "Hello";
        String even = "John";
        System.out.println( "Hello:" + test(odd));
        System.out.println( "John:" + test(even));
    }
}