How to make a table with 1 row by default - jsf-2

Question

I have a table and I want that everytime I run the program it show 1 blank row by default. How can i do that?
<h:dataTable cellspacing="0" value="#{editQuestion.answersData}" var="answer">
<h:column>
<f:facet name="header">ID</f:facet>
<h:outputText value="#{answer.answer.id}" />
</h:column>
<h:column>
<f:facet name="header"><h:outputText value="#{i18n['admin.edit.rightanswer']}" /></f:facet>
<h:selectBooleanCheckbox value="#{answer.answer.isRight}"/>
</h:column>
<h:column>
<f:facet name="header"><h:outputText value="#{i18n['admin.edit.answers']}" /></f:facet>
<h:inputTextarea id="answer" rows="3" cols="40" value="#{answer.text}" required="true" label ="Answer">
<f:validateLength maximum="500"/>
</h:inputTextarea>
<div>
<h:message for="answer" style ="color:red"/>
</div>
</h:column>
<h:column>
<h:commandButton image="/resources/imgs/#{editQuestion.buttonDelete}" immediate ="true" action="#{editQuestion.deleteAnswer(answer)}" disabled="#{!editQuestion.possibleToDelete}" alt="delete" title="#{i18n['img.delete']}">
<f:param name="id" value="#{editQuestion.id}"/>
</h:commandButton>
</h:column>
</h:dataTable>`

Answer 1

Just add a new instance of Answer to the list behind #{editQuestion.answerData} during the (post)construction of the bean behind #{editQuestion}.
E.g. during the postconstruct:
private List<Answer> answerData;
#PostConstruct
public void init() {
answersData = new ArrayList<Answer>();
answersData.add(new Answer());
}
Note that the bean needs to be #ViewScoped in order to preserve the right data across submits on the same view.