how to create multi checkbox and set id

I am new for vaadin. I want to create multi checkbox and set id to get id for use. how to create it?

thank you.

PS. I am not good in english language, I so sorry.

Do you mean something like this?

List<String> source = Arrays.asList(new String[] {"Item1", "tem2", "tem3", "tem4" });

OptionGroup opGroup = new OptionGroup("I can handle multi select!", source);
opGroup.addListener(new ValueChangeListener() {

                public void valueChange(ValueChangeEvent event) {
                    getWindow().showNotification("Your selected items,"+
                     "displayed as String: " + event.getProperty());

You can add specific item (your own objects) to this opGroup, too.

Person person = new Person();
opGroup.setItemCaption(person, person.getName());

Now your person object is the ID and the name of your person is displayed.

Thank you so much. your something code is look like my code.