object-oriented C++ program

#include <iomanip>
#include <cstdlib>
#include <iostream>
#include <string>
#include <sstream>
#include <cmath>
#include <time.h> 
 
 
using namespace std;
 
 
using std::cout;
using std::endl;
using std::cin;
  
class Mortgage                         //class is defined
 
{
 
public:                              // public access
void header(); 
void enterprinc(); 
 
 
double princ;                        //principle of the loan
double anInt;                       //Interest of the loan
int yrs;                               //Term of the loan
};
 
                     //All the functions within the class 
 
 
void Mortgage::header()                        // header of the program.
{
 
cout << "steve world \n\n";
cout << endl;
cout << "Write the program as an object-oriented C++ program that allows the user to select which way they want to calculate a mortgage:\n\n";
cout << endl;
 
}
 
void Mortgage::enterprinc ()
{
cout << endl;
cout << "Enter the amount for the Loan:$"; //User enters amount for the Loan
cin >> princ;
 
}
 
int main ()
 
{
 
while (1) { 
 
Mortgage mortgageTotal;
 
double princ = 0;                             //*Principle amount of loan is entered by user
double annualIntRate []= {5.35, 5.5, 5.75,};         //*Annual interest rate choosen in scenario 
double yrs []= {7, 15, 30,};                 //*Term of the loan is choosen with scenario
double EMI = 0;                                  //*Monthly Payment
double intPd;                                    //*Interest Paid
double bal;                                      //*Loan Balance
double amtPd;                                   //*Amount Paid on Loan
 
int NumOfPay;                                  //*Number of Payments
int Mnth;                                  //*Allows loop for loan balance and interest paid
int SL = 0;                                     //*Scroll List for loan balance and interest paid
char indicator;     //User chooses to enter Int and term or select scenario
 
 
//Begin Loop
 
{
mortgageTotal.header ();
mortgageTotal.enterprinc ();
 
//I added time and date and allow the enduser put his or her name in the program.
    
        time_t rawtime;
        struct tm * timeinfo;
 
        time ( &rawtime );
        timeinfo = localtime ( &rawtime );
        printf ( "Current local time and date: %s", asctime (timeinfo) );
 
        
  char question[] = "Please, enter your first name: ";
  char greeting[] = "Hello, ";
  char yourname [100];
  cout << question;
  cin >> yourname;
  cout << greeting << yourname << "!";
  cout<<endl;
 
 
 
 
 
 
cout<< "Would you like to select a scenario or enter your choice?"<< endl;
cout<< "Press S to select your scenario, or T to enter your choices"<<endl;
cin >> indicator;
 
if (indicator == 'S','s')
{
 
cout << "Please select your Terms and Rates from the following choices: " << endl;
cout << "1. 7 years at 5.35%" << endl;
cout << "2. 15 years at 5.5%" << endl;
cout << "3. 30 years at 5.75%" << endl;
cout << endl;
cout << " your selection:";
 
int select;
cin >> select;
cout << endl << endl << endl;
 
switch (select)
{
 
case 0: cout << endl; 
break;
 
 
case 1:
yrs[0] = 7;
annualIntRate[0] = 5.35; 
cout << "You have selected 7 Years and 5.35%" << endl; 
 EMI = (mortgageTotal.princ*((annualIntRate[0]/1200)/(1 - pow((1+(annualIntRate[0]/1200)),-1*(yrs[0]*12)))));
break;
 
case 2: 
yrs[1] = 15;
annualIntRate[1]= 5.50; 
cout << "You have selected 15 Years at 5.50%" << endl; 
 EMI = (mortgageTotal.princ*((annualIntRate[1]/1200)/(1 - pow((1+(annualIntRate[1]/1200)),-1*(yrs[1]*12)))));
break;
 
case 3: 
yrs[2] = 30;
annualIntRate[2] = 5.75; 
cout << "You have selected 30 Years at 5.75%" << endl; 
 EMI = (mortgageTotal.princ*((annualIntRate[2]/1200)/(1 - pow((1+(annualIntRate[2]/1200)),-1*(yrs[2]*12)))));
break;
 
default: 
cout << "Invalid Line Number" << endl;
if ((select < 1)|| (select > 3))
 
{ 
system("cls");
cout << "Please enter a cool choice!!!";
system("PAUSE");
 
system("cls");
return main();
}
}
}
 
 
cout << " the amount you have entered is: \n";
cout << endl;
cout << "Your Monthly Payment is: $" << EMI << "\n";
cout << endl;
 
// Formulas for Number of Payments, 
double NunOfPay = yrs [0] * 12;
SL = 0;
 
for (Mnth = 1; Mnth <= NunOfPay; ++Mnth)
{
 
//Formula
intPd = mortgageTotal.princ * (annualIntRate[0] / 1200);
amtPd = EMI - intPd;
bal = mortgageTotal.princ - amtPd;
if (bal < 0)bal = 0;
mortgageTotal.princ = bal;
 
// Scroll List titles to seperate the loan balance and Interest paid
 
if (SL == 0)
 
{
cout << "Balance of Loan" << "\t\t\tAmount of Interest Paid" << endl;
}
 
cout << setprecision(2) << fixed << "$" << setw(5) << bal << "\t\t\t\t$"<< setw(5) << intPd << endl;
++SL;
 
 
 
if (SL == 6)
 
{
cout << "Would you like to keep going and see the rest of the information or Quit?\n";
cout << endl;
cout << "Enter 'R' to see the remainder, Enter 'C' to try another example, Enter 'D' for done.\n";
cin >> indicator;
 
                       
 
if 
 
(indicator == 'R'||indicator == 'r')SL = 0;
 
else
 
if
 
(indicator == 'C'||indicator == 'c')
break;
 
 
else
if
(indicator == 'D'||indicator == 'd')
cout << endl;
 
}
 
}
 
}
 
while ((indicator!='C')&&(indicator!='c')); 
 
//Exit the program 
 
 
   char choice;
   cout << "Enter 'Q' to quit, anything else to start over" << endl;
 
   cin >> choice;
 
   if (choice == 'q' || choice == 'Q') break; // exit loop
 
   } // <--- end of 'while' from above
   return 0;
      }

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