static void Main()
        {
            // Making instances of all types of accounts with the two types of customers
            DepositAccount  first  = new DepositAccount(new IndividualCustomer("Jimmy Hendrix"), 1500, 5);
            DepositAccount  second = new DepositAccount(new CompanyCustomer("Jimmy Hendrix"), 500, 5);
            LoanAccount     third  = new LoanAccount(new IndividualCustomer("Jimmy Hendrix"), 4000, 7);
            LoanAccount     fourth = new LoanAccount(new CompanyCustomer("Jimmy Hendrix"), 50000, 3);
            MortgageAccount fifth  = new MortgageAccount(new IndividualCustomer("Jimmy Hendrix"), 34000, 4);
            MortgageAccount sixth  = new MortgageAccount(new CompanyCustomer("Jimmy Hendrix"), 19000, 9);

            // Testing the DepositMoney, WithDrawMoney and CalculateInterest methods for all account types
            Console.WriteLine("INDIVIDUAL DEPOSIT ACCOUNT:");
            Console.WriteLine("Balance: {0}", first.Balance);
            first.DepositMoney(10);
            Console.WriteLine("Balance after deposit: {0}", first.Balance);
            first.WithDrawMoney(150);
            Console.WriteLine("Balance after withdraw: {0}", first.Balance);
            Console.WriteLine("Calculate interest: {0}", first.CalculateInterest(5));
            Console.WriteLine();
            Console.WriteLine("CUSTOMER DEPOSIT ACCOUNT: ");
            Console.WriteLine("Balance: {0}", second.Balance);
            second.DepositMoney(2000);
            Console.WriteLine("Balance after deposit: {0}", second.Balance);
            second.WithDrawMoney(1800);
            Console.WriteLine("Balance after withdraw: {0}", second.Balance);
            Console.WriteLine("Calculate interest: {0}", second.CalculateInterest(9));
            Console.WriteLine();
            Console.WriteLine("INDIVIDUAL LOAN ACCOUNT:");
            Console.WriteLine("Balance: {0}", third.Balance);
            third.DepositMoney(60);
            Console.WriteLine("Balance after deposit: {0}", third.Balance);
            Console.WriteLine("Calculate interest: {0}", third.CalculateInterest(7));
            Console.WriteLine();
            Console.WriteLine("CUSTOMER LOAN ACCOUNT:");
            Console.WriteLine("Balance: {0}", fourth.Balance);
            fourth.DepositMoney(60);
            Console.WriteLine("Balance after deposit: {0}", fourth.Balance);
            Console.WriteLine("Calculate interest: {0}", fourth.CalculateInterest(9));
            Console.WriteLine();
            Console.WriteLine("INDIVIDUAL MORTGAGE ACCOUNT:");
            Console.WriteLine("Balance: {0}", fifth.Balance);
            fifth.DepositMoney(100);
            Console.WriteLine("Balance after deposit: {0}", fifth.Balance);
            Console.WriteLine("Calculate interest: {0}", fifth.CalculateInterest(6));
            Console.WriteLine();
            Console.WriteLine("CUSTOMER MORTGAGE ACCOUNT:");
            Console.WriteLine("Balance: {0}", sixth.Balance);
            sixth.DepositMoney(100);
            Console.WriteLine("Balance after deposit: {0}", sixth.Balance);
            Console.WriteLine("Calculate interest: {0}", sixth.CalculateInterest(11));

            // Testing the Bank class and the AddAccount method
            Bank newBank = new Bank(LoadList());

            Console.WriteLine();
            newBank.AddAccount(new DepositAccount(new IndividualCustomer("Joe Rogan"), 780, 3));
            Console.WriteLine("Type of customer: " + newBank.Accounts[6].Customer.GetType().Name);
            Console.WriteLine("Name: " + newBank.Accounts[6].Customer.Name);
            Console.WriteLine("Balance: " + newBank.Accounts[6].Balance);
            Console.WriteLine("Interest rate: " + newBank.Accounts[6].InterestRate);
        }