gistfile1.txt

#include <iostream>
#include <iomanip>
#include <cstdlib>

using namespace std;

//Prototypes
void printHead();
void calcPieces();

  float loanAmt = 0;     //Total Loan Amount
	double intRate = 0;    //Interest Rate as xx.xxx%
	float pAmt = 0;        //Payment Amount
	int pNum = 1;      //Payment Number counter
	float tPrincipal;  //Total Principal
	float tInterest;   //Total Interest
	double principal;  //Current principal
	double interest;   //Current interest
	float balance;     //Present Value of loan

int main() {
	
	//Collect Information
	while (loanAmt <= 0){
        cout << "Please input loan amount: ";
	    cin >> loanAmt;
        if (loanAmt <= 0){cout << "Invalid amount entered, please enter another one: ";}	
    }
	while (intRate <= 0){
         cout << "Please input interest rate as xx.xxx%: "; 
         cin >> intRate;
	     if (intRate <= 0){cout << "Invalid amount entered, please enter another one: ";}
         intRate = intRate / 100;
    }
	while (pAmt <= 0){
	    cout << "Please input monthly payment amount: ";
	    cin >> pAmt;
	    if (pAmt <= 0){cout << "Invalid amount entered, please enter another one: ";}
    }
	balance = loanAmt;
	interest = 0.000;
	
	//This needs to be the error check
	
	while (balance > 0.00){
		printHead();
		while(pAmt <= balance){
						
			calcPieces();
			
			if (pNum%20 == 1){
                        system("pause");
                        printHead();
                        }
			}
		    calcPieces();
		    balance = 0;
		    system("pause");
	}
	
	
	return 0;
}

void printHead(){
	cout << "PAMT #   PAMT AMT   PRINCIPAL      INTEREST        BALANCE   TTL INT  TTL PRIN" << endl;
	cout << "==============================================================================" << endl;
}

void calcPieces(){
     //Calc Interest and Principal, add to the totals, also balance
			interest = balance * (intRate/12);
			principal = pAmt - interest;
			tInterest = tInterest + interest;
			tPrincipal = tPrincipal + principal;
			balance = balance - (pAmt - interest);
			
			cout << setprecision(2) << fixed;
			cout << std::right;
			cout << std::setw(5);
			cout << pNum;
			cout << std::right;
			cout << setw(9);
			cout << pAmt;
			cout << std::right;
			cout << setw(14);
			cout << principal;
			cout << std::right;
			cout << setw(14);
			cout << interest;
			cout << std::right;
			cout << setw(14);
			cout << balance;
			cout << std::right;
			cout << setw(10);
			cout << tInterest;
			cout << std::right;
			cout << setw(14);
			cout << tPrincipal << endl; 		
			
			pNum++;
     }