Undefined Base Class?

rivera571 (3)
Been trying to figure this out, please help:

Here's the main driver:

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#include <iomanip>   // set precision and column widths
#include <math.h>    // math functions
#include <exception>
#include <string>
using namespace std;

#include "AmortizationCalculatorLab04.h"
#include "Exception.h"

 const int PERIODS_PER_YEAR(12);
 const int COLUMN_WIDTH(20);
 const int ROWS_TO_PRINT(20);

void pauseDisplay();

class LoanCalculator
{
private:
   int myNumberOfPayments;
   double myLoanAmount;
   double myAnnualInterestRate;
   double myMonthlyPayment;
public:
	void getInput()
	{
		system("cls");

		cout << "Welcome to the Loan Calculator Program!" << endl << endl;

		bool inputOkay = false;

		cout << "Enter the loan amount (ex. 300,000.00):  ";
		cin >> myLoanAmount;
		inputOkay = true;   

		cout << endl;

		while ((!inputOkay) && (cin >> myLoanAmount))
		{
			try
			{
				if (myLoanAmount <= 0)
				{
				  throw ExceptionLessThanZero();
				}
				else
				{
                   inputOkay = true;
				}
			}
			catch (ExceptionLessThanZero &e)
			{
			cout << "Exception occurred: " << e.getMessage() << '\n';
                cout << "Enter the loan amount (ex. 25000.00):  ";
			}
	    }

		cout << "Enter the annual interest rate (ex. 0.06):  ";  
		cin >> myAnnualInterestRate;

		cout << endl;

		cout << "Enter the total number of monthly payments(ex. 72):  ";
		cin >> myNumberOfPayments;

		cout << endl;
	}

	double calculateMonthlyPayment()
	{
		myMonthlyPayment =
			((myAnnualInterestRate / PERIODS_PER_YEAR) * myLoanAmount) /
			(1 - pow((1 + myAnnualInterestRate/PERIODS_PER_YEAR),(-1 * myNumberOfPayments)));
		return myMonthlyPayment;
	}

	void displayResults()
	{
		cout << setprecision(2) << fixed;
		cout << "Your monthly payment is $" << myMonthlyPayment << endl << endl;
		pauseDisplay();
    }

	double getMyLoanAmount()
	{
		return myLoanAmount;
	}
	double getMyAnnualInterestRate()
	{
		return myAnnualInterestRate;
	}
	int getMyNumberOfPayments()
	{
		return myNumberOfPayments;
	}
};

int main()
{
	LoanCalculator myLoanCalculator;
	myLoanCalculator.getInput();
	myLoanCalculator.calculateMonthlyPayment();
	myLoanCalculator.displayResults();

	AmortizationCalculator myMortgage;
	cout <<myMortgage.getMortgageTerm() <<endl;

	pauseDisplay();

    double oldBalance(myLoanCalculator.getMyLoanAmount());
    double newBalance(myLoanCalculator.getMyLoanAmount());
    int timePeriod(0);
    double periodicInterestRate = myLoanCalculator.getMyAnnualInterestRate() / 12.0;
    double interestPaid(0.0);

   while(timePeriod < myLoanCalculator.getMyNumberOfPayments())
   {
      if (timePeriod % ROWS_TO_PRINT == 0)
      {
         system("cls");
         cout << setw(COLUMN_WIDTH/2) << "PERIOD";
         cout << setw(COLUMN_WIDTH) << "INTEREST_PAID($)";
         cout << setw(COLUMN_WIDTH) << "PRINCIPLE_PAID($)";
         cout << setw(COLUMN_WIDTH) << "NEW_BALANCE($)" << endl;
      }
      timePeriod++;
      interestPaid = periodicInterestRate * oldBalance;
	  newBalance = (1+periodicInterestRate)* oldBalance - myLoanCalculator.calculateMonthlyPayment();

      if (newBalance < .01)
      {
        newBalance = 0.0;
      }

      cout << setprecision(2) << fixed;
      cout << setw(COLUMN_WIDTH/2) << timePeriod;
      cout << setw(COLUMN_WIDTH) << interestPaid;
	  cout << setw(COLUMN_WIDTH) << myLoanCalculator.calculateMonthlyPayment() - interestPaid;
      cout << setw(COLUMN_WIDTH) << newBalance << endl;

      if (timePeriod % 20 == 0)
      {
         pauseDisplay();
      }

      oldBalance = newBalance;
   }

   return 0;
}

void pauseDisplay()
{
   cout << "Press <enter> to continue...";
   cin.ignore(1);
}


Here is the referenced header file:

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#ifndef AMORTIZATIOMCALCULATORLAB04_H
#define AMORTIZATIOMCALCULATORLAB04_H

class AmortizationCalculator: public LoanCalculator
{
public:

int getMortgageTerm()
{
MortgageTerm = myNumberOfPayments / 12;
return MortgageTerm;
}

private:
	int MortgageTerm;
};
#endif


Keep getting these:

Error 2 error C2065: 'myNumberOfPayments' : undeclared identifier c:\users\edgar\documents\visual studio 2008\projects\lab04\lab04\amortizationcalculatorlab04.h 10

Error 1 error C2504: 'LoanCalculator' : base class undefined c:\users\edgar\documents\visual studio 2008\projects\lab04\lab04\amortizationcalculatorlab04.h 5

Thank You
Disch (13742)
You have two classes here. AmortizationCalculator and LoanCalculator. LoanCalculator is a dependency of AmortizationCalculator, and therefore must be defined first. However you're defining it after, which is what is giving you the errors.

Either move the #include "AmortizationCalculatorLab04.h" to a line below your LoanCalculator class definition, or put your LoanCalculator in its own header and #include it before you #include "AmortizationCalculatorLab04.h".
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