void initAnswerPanel(JPanel answerPanel) {
textField.setText(type.getAnswer());
textField.addChangeListener(this);
Bag bag = new Bag();
answerPanel.add(textField, bag.WEST());
answerPanel.add(validationLabel, bag.nextX().inset(0, SPACE_BEFORE_VALIDATION, 0, 0));
}
void initLayout(ELabel questionLabel, JPanel answerPanel, JPanel panel, Bag bag) {
panel.add(questionLabel, leftSideConstraints(bag));