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Java Platform, Enterprise Edition (Java EE) 8
The Java EE Tutorial

Using a Managed Bean in a Facelets Page

To use the managed bean in a Facelets page, create a form that uses user interface elements to call its methods and to display their results. The following example provides a button that asks the user to type a name, retrieves the salutation, and then displays the text in a paragraph below the button:

<h:form id="greetme">
   <p><h:outputLabel value="Enter your name: " for="name"/>
      <h:inputText id="name" value="#{printer.name}"/></p>
   <p><h:commandButton value="Say Hello"
                       action="#{printer.createSalutation}"/></p>
   <p><h:outputText value="#{printer.salutation}"/></p>
</h:form>

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