private double checkIfTransactionsExist(boolean checkAll) {
double amount = 0.0;
for (Transaction t : transactions) amount += t.getAmount();
return amount;
}
private boolean isThereWithdrawl() {
long diff = 0;
long diffDays = 0;
Date now = DateProvider.getInstance().now();
Date transactionDate = null;
for (Transaction t : transactions) {
if (t.getAmount() < 0) {
transactionDate = t.getTransactionDate();
diff = now.getTime() - transactionDate.getTime();
diffDays = diff / (24 * 60 * 60 * 1000) + 1;
if (diffDays < 10) {
return true;
}
}
}
return false;
}
/** @return Total interest earned on this account */
public double interestEarned() {
double amount = 0.0;
Map<Date, List<Transaction>> dailyTransactions = getTransactions();
List<Date> dates = new ArrayList<Date>(dailyTransactions.keySet());
Date lastWithdrawalDate = null;
// Interate though transactions on each day and calculate the daily interest
for (int index = dates.size() - 1; index >= 0; index--) {
// Iterate through transactions looking for a Withdrawal.
for (Transaction t : dailyTransactions.get(dates.get(index))) {
if (t.getType() == TransactionType.WITHDRAWAL) {
lastWithdrawalDate = t.getTransactionDate();
break;
}
}
}
// Calculate the daily amount with interest
for (Date transactionDate : dailyTransactions.keySet()) {
amount += calculateAmountWithInterest(transactionDate, lastWithdrawalDate, amount);
}
return amount;
}