public Atm() // constructor
// sets the customer array to that found in the file if the file exists
{
try {
// Set cross-platform Java L&F (also called "Metal")
UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
} catch (UnsupportedLookAndFeelException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (InstantiationException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
if (logFile.exists()) {
try {
adminLogs = returnLog("p2.log");
if (!adminLogs.isEmpty()) {
// there may be customer data but perhaps no transactions yet.
ArrayList<Integer> allTransactions = new ArrayList<>(100);
for (AdminLog a : adminLogs) {
int transaction = a.getTransactionID();
;
allTransactions.add(transaction);
}
transaction_counter = Collections.max(allTransactions) + 1;
}
} catch (ClassNotFoundException | IOException e) {
e.printStackTrace();
}
}
if (DBfile.exists()) {
try {
cust = returnSavedData("p2.dat");
// sets the starting ID to the max of all the IDs stored in the file.
allIDs = new ArrayList<Integer>(100);
ArrayList<Integer> allAccounts = new ArrayList<>();
for (Customer customer : cust) {
String idString = customer.returnID();
int id = Integer.parseInt(idString);
allIDs.add(id);
int accountNumber = customer.returnMaxAccount();
allAccounts.add(accountNumber);
}
// checks to see if the customer has even made any accounts, if not, max accounts will be
// set at 1001
if (starting_account_number != 1) {
starting_account_number = Collections.max(allAccounts) + 1;
}
starting_customer_number = Collections.max(allIDs) + 1;
} catch (ClassNotFoundException | IOException e) {
e.printStackTrace();
}
} else {
cust = new ArrayList<>(100);
// creates the file if it does not exist
try {
saveFile(cust, DBfile);
} catch (IOException e) {
e.printStackTrace();
}
}
interest_rate = 5;
}
