public String close_account(String accountNum) {
// actually closes the customer's account and returns a dialog box
customer.removeAccount(accountNum);
String cusInfo = customer.returnInfo();
StringBuilder result = new StringBuilder();
result.append("<html>Deleted account!<br>Updated information:<br>");
String subCusInfo =
cusInfo.substring(7, cusInfo.length()); // removes the last html tag from returnInfo()
result.append(subCusInfo);
try {
saveFile(cust, DBfile);
} catch (IOException e) {
e.printStackTrace();
}
customer = null; // resets the customer and account after each transaction
pin = null;
return result.toString();
}
