title: How do I add two numbers and display the result by using <h:outputText>?
body: <p>I was wondering how do I add two numbers, in this case <code>Car.number.Audi</code> and <code>Car.number.VW</code> using <code>&lt;h:outputText&gt;</code> to display the result:</p>
  
  <pre class="lang-html prettyprint-override"><code> #{Car.number.Audi} = 3
   #{Car.number.VW} = 2
  
   &lt;div&gt;
       &lt;h:outputText styleClass="Car-Column" 
                     value="#{Car.number.Audi} + #{Car.number.VW}"/&gt;
   &lt;/div&gt;
  </code></pre>