private boolean checkCard(Scanner in)
   {
      System.out.println("Please enter your card information : ");
      String inputBankID = in.next();
      int inputCardID = Integer.parseInt(in.next());
      currentCustomer = new CashCard(inputBankID, inputCardID);
      if(inputBankID.equals(supportedBank.getBankID())
            && supportedBank.verifyCardID(currentCustomer))
      {
         if(supportedBank.verifyExpiration(currentCustomer))
         {
            return true;
         }
         else
         {
            System.out.println("Sorry your card is expired.");
            return false;
         }
      }
      else if(!inputBankID.equals(supportedBank.getBankID()))
      {
         System.out.println("Sorry, this ATM doesn't support your Bank.");
         return false;
      }
      else
      {
         System.out.println("Sorry, this bank doesn't recognize your card.");
         return false;
      }
      
      
   }