h:selectOneMenu - default selected

<h:selectOneMenu id="items" value="#{MyBean.selectedItem}">
  <f:selectItem itemLabel="10" itemValue="10"/>
  <f:selectItem itemLabel="20" itemValue="20"/>
  <f:selectItem itemLabel="30" itemValue="30"/>
</h:selectOneMenu>

the default selection would be the which has value same as selectedItem