Combining mortgage .cpp with Banking .cpp

[DavidBrent]

I have two applications that complete different activities, one is a simple banking program and the other is a mortgage application program. I am trying to combine the two so that the mortgage application program can be accessed from the main menu in the banking application. The first code is the banking program and the second is the mortgage program. Any help would be greatly appreciated.

#include<iostream>
#include<fstream>
#include<cctype>
#include<iomanip>
using namespace std;

class account
{
	int acno;
	char name[50];
	char add[50];
	int deposit;
	char type;
public:
	void create_account();	//function to get data from user
	void show_account() const;	//function to show data on screen
	void modify();	//function to add new data
	void dep(int);	//function to accept amount and add to balance amount
	void draw(int);	//function to accept amount and subtract from balance amount
	void report() const;	//function to show data in tabular format
	int retacno() const;	//function to return account number
	int retdeposit() const;	//function to return balance amount
	char rettype() const;	//function to return type of account
};         //class ends here

void account::create_account()
{
	cout<<"\nEnter The account No. :";
	cin>>acno;
	cout<<"\n\nEnter The Name of The account Holder : ";
	cin.ignore();
	cin.getline(name,50);
	cout<<"\n\nEnter The Address of The account Holder : ";
	cin.ignore();
	cin.getline(add,50);
	cout<<"\nEnter Type of The account : ";
	cin>>type;
	type=toupper(type);
	cout<<"\nEnter The Initial amount : ";
	cin>>deposit;
	cout<<"\n\n\nAccount Created..";
}

void account::show_account() const
{
	cout<<"\nAccount No. : "<<acno;
	cout<<"\nAccount Holder Name : ";
	cout<<name;
	cout<<"\nAccount Holder Address : ";
	cout<<add;
	cout<<"\nType of Account : "<<type;
	cout<<"\nBalance amount : "<<deposit;
}


void account::modify()
{
	cout<<"\nAccount No. : "<<acno;
	cout<<"\nModify Account Holder Name : ";
	cin.ignore();
	cin.getline(name,50);
	cout<<"\nModify Account Holder Address : ";
	cin.ignore();
	cin.getline(add,50);
	cout<<"\nModify Type of Account : ";
	cin>>type;
	type=toupper(type);
	cout<<"\nModify Balance amount : ";
	cin>>deposit;
}

	
void account::dep(int x)
{
	deposit+=x;
}
	
void account::draw(int x)
{
	deposit-=x;
}
	
void account::report() const
{
	cout<<acno<<setw(10)<<" "<<name<<setw(10)<<" "<<add<<setw(10)<<" "<<type<<setw(6)<<deposit<<endl;
}

	
int account::retacno() const
{
	return acno;
}

int account::retdeposit() const
{
	return deposit;
}

char account::rettype() const
{
	return type;
}


//***************************************************************
//    	function declaration
//****************************************************************
void write_account();	//function to write record in binary file
void display_sp(int);	//function to display account details given by user
void modify_account(int);	//function to modify record of file
void delete_account(int);	//function to delete record of file
void display_all();		//function to display all account details
void deposit_withdraw(int, int); // function to desposit/withdraw amount for given account
void intro();	//introductory screen function

//***************************************************************
//    	THE MAIN FUNCTION OF PROGRAM
//****************************************************************


int main()
{
	char ch;
	int num;
	intro();
	do
	{
		system("cls");
		cout<<"\n\n\n\tMAIN MENU";
		cout<<"\n\n\t01. NEW ACCOUNT";
		cout<<"\n\n\t02. DEPOSIT AMOUNT";
		cout<<"\n\n\t03. WITHDRAW AMOUNT";
		cout<<"\n\n\t04. BALANCE ENQUIRY";
		cout<<"\n\n\t05. ALL ACCOUNT HOLDER LIST";
		cout<<"\n\n\t06. CLOSE AN ACCOUNT";
		cout<<"\n\n\t07. MODIFY AN ACCOUNT";
		cout<<"\n\n\t08. EXIT";
		cout<<"\n\n\tSelect Your Option (1-8) ";
		cin>>ch;
		system("cls");
		switch(ch)
		{
		case '1':
			write_account();
			break;
		case '2':
			cout<<"\n\n\tEnter The account No. : "; cin>>num;
			deposit_withdraw(num, 1);
			break;
		case '3':
			cout<<"\n\n\tEnter The account No. : "; cin>>num;
			deposit_withdraw(num, 2);
			break;
		case '4': 
			cout<<"\n\n\tEnter The account No. : "; cin>>num;
			display_sp(num);
			break;
		case '5':
			display_all();
			break;
		case '6':
			cout<<"\n\n\tEnter The account No. : "; cin>>num;
			delete_account(num);
			break;
		 case '7':
			cout<<"\n\n\tEnter The account No. : "; cin>>num;
			modify_account(num);
			break;
		 case '8':
			cout<<"\n\n\tThanks for using bank managemnt system";
			break;
		 default :cout<<"\a";
		}
		cin.ignore();
		cin.get();
	}while(ch!='8');
	return 0;
}


//***************************************************************
//    	function to write in file
//****************************************************************

void write_account()
{
	account ac;
	ofstream outFile;
	outFile.open("account.dat",ios::binary|ios::app);
	ac.create_account();
	outFile.write(reinterpret_cast<char *> (&ac), sizeof(account));
	outFile.close();
}

//***************************************************************
//    	function to read specific record from file
//****************************************************************

void display_sp(int n)
{
	account ac;
	bool flag=false;
	ifstream inFile;
	inFile.open("account.dat",ios::binary);
	if(!inFile)
	{
		cout<<"File could not be open !! Press any Key...";
		return;
	}
	cout<<"\nBALANCE DETAILS\n";

    	while(inFile.read(reinterpret_cast<char *> (&ac), sizeof(account)))
	{
		if(ac.retacno()==n)
		{
			ac.show_account();
			flag=true;
		}
	}
	inFile.close();
	if(flag==false)
		cout<<"\n\nAccount number does not exist";
}

void modify_account(int n)
{
	bool found=false;
	account ac;
	fstream File;
	File.open("account.dat",ios::binary|ios::in|ios::out);
	if(!File)
	{
		cout<<"File could not be open !! Press any Key...";
		return;
	}
	while(!File.eof() && found==false)
	{
		File.read(reinterpret_cast<char *> (&ac), sizeof(account));
		if(ac.retacno()==n)
		{
			ac.show_account();
			cout<<"\n\nEnter The New Details of account"<<endl;
			ac.modify();
			int pos=(-1)*static_cast<int>(sizeof(account));
			File.seekp(pos,ios::cur);
			File.write(reinterpret_cast<char *> (&ac), sizeof(account));
			cout<<"\n\n\t Record Updated";
			found=true;
		  }
	}
	File.close();
	if(found==false)
		cout<<"\n\n Record Not Found ";
}

void delete_account(int n)
{
	account ac;
	ifstream inFile;
	ofstream outFile;
	inFile.open("account.dat",ios::binary);
	if(!inFile)
	{
		cout<<"File could not be open !! Press any Key...";
		return;
	}
	outFile.open("Temp.dat",ios::binary);
	inFile.seekg(0,ios::beg);
	while(inFile.read(reinterpret_cast<char *> (&ac), sizeof(account)))
	{
		if(ac.retacno()!=n)
		{
			outFile.write(reinterpret_cast<char *> (&ac), sizeof(account));
		}
	}
	inFile.close();
	outFile.close();
	remove("account.dat");
	rename("Temp.dat","account.dat");
	cout<<"\n\n\tRecord Deleted ..";
}

void display_all()
{
	account ac;
	ifstream inFile;
	inFile.open("account.dat",ios::binary);
	if(!inFile)
	{
		cout<<"File could not be open !! Press any Key...";
		return;
	}
	cout<<"\n\n\t\tACCOUNT HOLDER LIST\n\n";
	
	while(inFile.read(reinterpret_cast<char *> (&ac), sizeof(account)))
	{
		ac.report();
	}
	inFile.close();
}

void deposit_withdraw(int n, int option)
{
	int amt;
	bool found=false;
	account ac;
	fstream File;
	File.open("account.dat", ios::binary|ios::in|ios::out);
	if(!File)
	{
		cout<<"File could not be open !! Press any Key...";
		return;
	}
	while(!File.eof() && found==false)
	{
		File.read(reinterpret_cast<char *> (&ac), sizeof(account));
		if(ac.retacno()==n)
		{
			ac.show_account();
			if(option==1)
			{
				cout<<"\n\n\tTO DEPOSITE AMOUNT ";
				cout<<"\n\nEnter The amount to be deposited";
				cin>>amt;
				ac.dep(amt);
			}
			if(option==2)
			{
				cout<<"\n\n\tTO WITHDRAW AMOUNT ";
				cout<<"\n\nEnter The amount to be withdraw";
				cin>>amt;
				int bal=ac.retdeposit()-amt;
				if((bal<500 && ac.rettype()=='S') || (bal<1000 && ac.rettype()=='C'))
					cout<<"Insufficience balance";
				else
					ac.draw(amt);
			}
			int pos=(-1)*static_cast<int>(sizeof(ac));
			File.seekp(pos,ios::cur);
			File.write(reinterpret_cast<char *> (&ac), sizeof(account));
			cout<<"\n\n\t Record Updated";
			found=true;
	       }
         }
	File.close();
	if(found==false)
		cout<<"\n\n Record Not Found ";
}


void intro()
{
	cout<<"\n\n\n\t  BANK";
	cout<<"\n\n\tMANAGEMENT";
	cout<<"\n\n\t  SYSTEM";
	cout<<"\n\n\n\n;
	cout<<"\n\";
	cin.get();
} 

[DavidBrent]

Here is the mortgage application as discussed above

#include <iostream>

#include <iomanip>

#include <string>

#include <math.h>

#include <windows.h>

 

//set namespace to eliminate the need for std:: prefixes

using namespace std;

 

//public defines

int runloan();

bool isvalidnumber(string * puserinput);

void printheader(int iPrintYear);

HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE); //get handle to standard output

 

int main()

{

//set color of output to intense white text with standard black background

SetConsoleTextAttribute(hConsole, 15 | 1);

 

//set default first run to yes so loan procedure runs with out prompt

string userinput = "Y";

 

//loop while variable is Y allong user to input choices

while (strcmp(userinput.c_str(),"Y") == 0)

{

runloan(); //run the main loan routine

userinput = "";

 

//loop till user enters Y or N

while (strcmp(userinput.c_str(), "Y") != 0 && strcmp(userinput.c_str(), "N") != 0)

{

cout << "Do you want to restart the program? (Y or N): ";

getline(cin, userinput);

 

//convert first letter user input to upper case if single letter was entered only

if (userinput.length() == 1)

{

      userinput = toupper(userinput[0]); //convert first letter to upper case

}

}

}

return 0;

}

 

int runloan()

{

string userinput;

double amount, rate, term, payment, interest, principle;

int iCounter=0, iYear=1, loanchecker;

string * puserinput = &userinput; // pointer to user input variable

 

//formatting output with a decimal place of 2

cout << setiosflags(ios::fixed | ios::showpoint) << setprecision(2);

 

//get loan amount routine

userinput = "";

 

//loop till valid numeric number is found and is not empty

while(!isvalidnumber(puserinput) || userinput.length() == 0)

{

      cout << "Enter the amount of loan: ";

      getline(cin, userinput);

}

amount = atof(userinput.c_str()); //convert string to double

loanchecker = (int)amount;

 

//get interest rate routine

userinput = "";

 

//loop till valid numeric number is found and is not empty

while(!isvalidnumber(puserinput) || userinput.length() == 0)

{

      cout << "Enter the interest rate: ";

      getline(cin, userinput);

}

rate = atof(userinput.c_str()); //convert string to double

 

//if rate is a not a decimal convert value to decimal

if(rate > 1)

      rate = (rate/100);

 

//get term routine

userinput = "";

 

//loop till valid numeric number is found and is not empty

while(!isvalidnumber(puserinput) || userinput.length() == 0)

{

      cout << "Enter the total number of years: ";

      getline(cin, userinput);

}

term = atof(userinput.c_str()); //convert string to double

 

//calculate the monthly payment

payment = (amount * pow((rate / 12) + 1, (term * 12))* rate / 12)/(pow(rate / 12 + 1, (term

* 12)) - 1);

 

//output loan specific data header information

cout << "\nUser Specified Loan Details" << endl;

cout << setfill('-') << setw(80) << "-" << endl;

 

//output report hearder information

printheader(iYear);

 

//output the monthly payment

while (loanchecker != 0)

{

//increment counters

iCounter++;

 

//calculate interest rate based on remaining loan amount

interest = (amount * rate) / 12;

 

//calculate new loan amount after payment plus interest

amount = (amount - payment) + interest;

 

//calculate principle by subtracting the interest

principle = payment - interest;

loanchecker = (int)amount;

 

//prevent a negative number once loan is paid off

if (loanchecker == 0) amount = 0;

//output loan information for a specific month

cout << iCounter << "\t" << payment << "\t\t" << interest << "\t\t" << principle <<

"\t\t" << amount << endl;

 

//allow screen data to be buffered if the loan amount is not 0 per year

if (iCounter == 12 && amount != 0)

{

iCounter = 0;

iYear++;

cout << "Press enter to continue...";

getline(cin, userinput);

 

//output report header information

printheader(iYear);

}

}

return 0;

}

 

bool isvalidnumber(string * puserinput)

{

bool decimal = true;

string checkstring = *puserinput; //convert memory location to string

for(int count=0; count < (int)checkstring.length(); count++) //loop the char array for invalid numeric data

{

if(isdigit(checkstring[count]) || checkstring[count] == '.' && decimal == true)

{

if(checkstring[count]== '.') //only allows one decimal place

{

decimal = false;

}

}

else

{

return false; //numeric validation failed

}

}

return true; //numeric validation success

}

 

void printheader(int iPrintYear)

{

//clear screen

system("cls");

 

//set color of output

SetConsoleTextAttribute(hConsole, 12);

 

//output current reporting year

cout << "\nDetails for year: " << iPrintYear << endl;

 

//set color of output

SetConsoleTextAttribute(hConsole, 14);

 

//output loan payment specific data header information

cout << "Month\tPayment\t\tInterest\tPrinciple\tLoan Amount" << endl;

cout << setfill('-') << setw(80) << "-" << endl;

 

//reset color of output to initial color text

SetConsoleTextAttribute(hConsole, 15);

}