Hello World! Complete example

HelloResty.java

import us.monoid.web.Resty;
import java.io.IOException;

public class HelloResty {
    // Hello World!
    public static void main(String... args) throws IOException {
        Resty r = new Resty();
        // Get the content of the URL as text and print it
        String hello = r.text("http://www.helloworld.org/data/helloworld.java").toString();
        System.out.println(hello);
    }
}

I turned it into a working example.