/**
* Entry point for program.
*
* @param args the user can provide a filename.txt to read/store banking info.
*/
public static void main(String[] args) {
theBank = null;
try {
try {
in = new Scanner(System.in);
// To be used for reading from and writing to file
DataParser bankParser = new DataParser();
String filename = null;
String bankName = null;
// Retrieve the filename from args if there is one supplied
if (args.length > 0) {
filename = args[0];
// Reads in bank data from file
bankParser.readData(filename);
bankName = bankParser.getBankName();
LinkedList<BankAccount> accounts = bankParser.getAccounts();
LinkedList<BankCustomer> customers = bankParser.getCustomers();
theBank = new Bank(bankName, accounts, customers);
} else {
// Asks user for bank name and filename
System.out.println("Welcome! I'm a bank, but I forgot my name.");
System.out.print("What's my name?: ");
bankName = in.nextLine();
boolean isValidFilename = false;
while (!isValidFilename) {
System.out.print(
"Please provide a filename to store all banking data (filename.txt): ");
filename = in.nextLine();
// Checks that filename has extension txt
String validFilename =
".+[.]txt"; // filename must contain at least 1 of any character followed by .txt
if (filename.matches(validFilename)) {
isValidFilename = true;
}
}
theBank = new Bank(bankName);
}
System.out.println("\n\nWelcome to " + theBank.getName() + "!");
// Displays a menu of available actions and asks user to choose an action
boolean done = false;
while (!done) {
done = menu();
}
System.out.println("Have a splendid day!");
// Write all banking data to file
bankParser.writeData(
filename,
theBank.getName(),
theBank.getTotalBalance(),
theBank.getAllAccounts(),
theBank.getAllCustomers());
} finally {
if (in != null) {
in.close();
}
}
} catch (FileNotFoundException e) {
System.out.println("\nThe bank data file was not found.");
} catch (BadDataException e) {
System.out.println("\nThe data provided in the file is corrupt.");
}
}
