<p:dataTable tableStyle="width:auto">

               <p:column headerText="Nume">
                   <h:outputText value="#{calculeaza.nume}"/>
                   <h:inputText value="#{calculeaza.nume}" rendered="#{calculeaza.nume}" size="30"/>
               </p:column>

               <p:column headerText="Cantitate" >
                   <h:outputText value="#{calculeaza.cant}" rendered="#{calculeaza.cant}"/>
               </p:column>

               <p:column headerText="Pret unitar">
                    <h:outputText value="#{calculeaza.pu}" rendered="#{calculeaza.pu}"/>
               </p:column>
               <p:column headerText="Valoare">
                   <h:outputText value="#{calculeaza.val}" rendered="#{calculeaza.val}"/>
               </p:column>
               <p:column headerText="TVA">
                    <h:outputText value="#{calculeaza.tva}" rendered="#{calculeaza.tva}"/>
               </p:column>
           </p:dataTable>