form.add(newRadioGroup(candidateChoices));
// multiple select family
form.add(new ListMultipleChoice("initialListMultipleChoice", candidateChoices,
bookChoiceRenderer));
form.add(new CheckBoxMultipleChoice("initialCheckBoxMultipleChoice", candidateChoices,
bookChoiceRenderer));
form.add(newCheckGroup("initialCheckGroup", candidateChoices));
form.add(new ListMultipleChoice("listMultipleChoice", candidateChoices, bookChoiceRenderer)
.setMaxRows(4));
form.add(new CheckBoxMultipleChoice("checkBoxMultipleChoice", candidateChoices,
bookChoiceRenderer));
form.add(newCheckGroup("checkGroup", candidateChoices));
form.add(new Button("anotherButton")
{
private static final long serialVersionUID = 1L;