Time for action – using the SelectManyButton component

Let us see how to use the <p:selectManyButton> component, by performing the following step:

1. Create a form with the <p:selectManyButton> component with multiple options:

   <h:form>
       <p:panel header="SelectManyButton">
       <h:panelGrid style="margin-bottom:5px" cellpadding="3">
           <p:selectManyButton value="#{selectionController.numbers}">
               <f:selectItem itemLabel="One" itemValue="1"/>
               <f:selectItem itemLabel="Two" itemValue="2"/>
               <f:selectItem itemLabel="Three" itemValue="3"/>
       </p:selectManyButton>
       </h:panelGrid>  
       
       <p:commandButton value="Submit" update="display"/>
       <h:outputText id="display"value="  Value : #{selectionController.numbers}" /> 
       </p...