package strutsdemo;import org.apache.struts.action.*;import javax.servlet.http.*;public class myAction extends Action {  public ActionForward perform(ActionMapping actionMapping, ActionForm actionForm, HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) {    /**@todo: complete the business logic here, this is just a skeleton.*/    myActionForm myActionForm = (myActionForm) actionForm;    String sA = myActionForm.getFieldA ( ) ;    String sB = myActionForm.getFieldB ( ) ;    myActionForm.setFieldResult (sA+sB) ;    return ( actionMapping.findForward ( "input" ) ) ;  }}