public double getBalance() {
double totalBal = 0.0;
if (cardCount() == 0) return 0.0;
else {
ListIterator iter = cards.dataIterator();
while (iter.hasNext()) {
CreditCard tmp = (CreditCard) iter.next();
totalBal += tmp.getCredit();
}
}
return totalBal;
}
public void addCreditCard(CreditCard aCreditCard) {
cards.insert(aCreditCard, aCreditCard);
}
public int cardCount() {
return cards.size();
}
public ListIterator getCards() {
return cards.dataIterator();
}