public String toString() {
NumberFormat nf = NumberFormat.getCurrencyInstance();
Currency cur = currency.getCurrency();
if (cur == null) {
return "Money()";
}
nf.setCurrency(cur);
String c = nf.format(cents / (Math.pow(10, currency.getDefaultFractionDigits())));
return "Money(" + c + ")";
}
@Override
public int hashCode() {
return currency.hashCode() * 31 + cents;
}