Make a radio button in Eclipse plugin's menu

Question

I have this menu that has 2 items Compile and Run [shown in the screenshot below]

I want to make another menu item in the form : [ Language-> ] and Language has other two items 'German' & 'French' that have check boxes or Radio buttons as I want the user to check one of the 2 languages and I detect that so I can make some changes according to the language check

so now I need 2 things 1- make the menu with that format and they have to be checkable 2- How to detect which one was checked

Here is the XML code for the menu

<plugin>

   <extension
         point="org.eclipse.ui.actionSets">

      <actionSet
            id="Bachelor.actionSet"
            label="New menu"
            visible="true">

  <menu
               id="sampleMenu"
               label="Localized">
            <separator
                  name="sampleGroup">
            </separator>
            <groupMarker
                  name="content">
            </groupMarker>
         </menu>
<action
      class="bachelor.actions.Compile"
      icon="icons/sample.gif"
      id="bachelor.actions.Compile"
      label="&amp;Compile"
      menubarPath="sampleMenu/content"
      toolbarPath="sampleGroup"
      tooltip="Open the resource manager view">
</action>
<action
      class="bachelor.actions.Run"
      icon="icons/sample.gif"
      id="bachelor.actions.Run"
      label="&amp;Run"
      menubarPath="sampleMenu/content"
      toolbarPath="sampleGroup"
      tooltip="Open the resource manager view">
</action>
      </actionSet>
   </extension>



</plugin>

Answer 1

You just need to add

style="radio"

to the XML definitions. See the Eclipse help for more information and how to choose which of the two is marked by default.