public class ApplicationManager extends org.mentawai.core.ApplicationManager {
 	
     public void loadActions() {
         
         // Ruby style: less verbose and less clear
         
         action("/HelloWorld", HelloMentawai.class)
             
             .on(SUCCESS, fwd("/hello.jsp"))
             .on(ERROR, fwd("/username.jsp"));
             
         // Java style: more verbose and more clear
         
        addFormater(Date.class, new DateFormatter());
             
     }
 }

 public class DateFormatter extends BaseFormatter {
     public String format(Object data) {
         Date date = (Date) data;
         SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
         return sdf.format(date);
     }
 }