Jsf file having inputtext field.After entering value in the field and pressing enter,it should perform the action in command button(nextButton) i.e- call Action() in BackingBean.java
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:c="http://java.sun.com/jstl/core"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:a4j="https://ajax4jsf.dev.java.net/ajax">
<ui:define id="content" name="page-content">
<h:inputText id="Number" value="#{BackinBean.Id}"/>
</ui:define>
<ui:define id="contentfooter" name="page-content_footer">
<table width="100%">
<tr>
<td>
<h:commandButton id="nextButton" value="Next"
action="#{BackinBean.Action}" styleClass="btn"/>
</td>
</tr>
</table>
</ui:define>
Bean class-BackingBean.java has
public Action(){..........}