// duynotes blog
public class Customer {
  public static void main(String args[]) {
    BankService myBankService = new BankService();
    int mySaving = myBankService.createNewAccount("saving", new BigDecimal(500.00));
    int myInvestment = myBankService.createNewAccount("investment", new BigDecimal(1000.00));
    myBankService.transferMoney(mySaving,myInvestment, new BigDecimal(300.00));
}
}