public void actionPerformed(ActionEvent e) {
Object src = e.getSource();
if (src.equals(next)) {
showResult();
quiz.next();
}
if (src.equals(finish)) {
quiz.showSummary();
}
for (int i = 0; i < responses.length; i++) {
if (src == responses[i]) {
selected = i;
}
}
}
