public static void main(String args[]) throws IOException {
// Create a Scanner to read keyboard input.
Scanner keyboard = new Scanner(System.in);
// Ask user to enter annual interest rate
System.out.print("Enter the savings account's " + "annual interest rate: ");
double interestRate = keyboard.nextDouble();
// close keyboard
keyboard.close();
DepositAndWithdrawalFiles depositAndWithdrawalFiles = new DepositAndWithdrawalFiles();
SavingsAccount savingsAccount = depositAndWithdrawalFiles.new SavingsAccount(500, interestRate);
// create a path to the deposit file
Path depositPath =
Paths.get("src/main/resources/com/levelup/java/exercises/beginner/Deposits.txt")
.toAbsolutePath();
// sum all lines in file and setting value in saving account
double totalDeposits = Files.lines(depositPath).mapToDouble(Double::valueOf).sum();
savingsAccount.deposit(totalDeposits);
// create a path to the withdrawls file
Path withdrawlsPath =
Paths.get("src/main/resources/com/levelup/java/exercises/beginner/Withdrawls.txt")
.toAbsolutePath();
// sum all lines in file and setting value in saving account
double totalWithdrawls = Files.lines(withdrawlsPath).mapToDouble(Double::valueOf).sum();
savingsAccount.withdraw(totalWithdrawls);
// Get the balance before adding interest.
double priorBalance = savingsAccount.getAccountBalance();
// Add the interest.
savingsAccount.addInterest();
// Get the interest earned.
double interestEarned = savingsAccount.getLastAmountOfInterestEarned();
// Create a DecimalFormat object for formatting output.
DecimalFormat dollar = new DecimalFormat("#,##0.00");
// Show user interest earned and balance.
System.out.println("Interest earned: $" + dollar.format(interestEarned));
System.out.println("Prior balance: $" + dollar.format(priorBalance));
System.out.println("Ending balance: $" + dollar.format(savingsAccount.getAccountBalance()));
}
