Question

Write in C++ using emacs.

Write a program that calculates the ending balance of several savings accounts. The program reads information about different customers’ accounts from an input file, “accounts.txt”. Each row in the file contains account information for one customer. This includes: the account number, account type (premium, choice, or basic account), starting balance, total amount deposited, and total amount withdrawn.

Your program should:

- open the file and check for successful open,

- then calculate the ending balance for each customer account. The calculated data must be saved in an output file, “accountsOut.txt”, in a neat format as shown below. You may assume that the interest is 5% for premium accounts, 3% for choice accounts, and 1% for basic accounts.

You MUST use a named constant for the interest rates. Since the results displayed are monetary values, your output must be displayed with two decimal places of precision. Be sure decimals “line up” when yu output the final accounts information. And do not forget to close the files when done with them.

Sample input file:

234019 Premium 50100.44 25500.00 14792.91

234490 Choice 35000.52 14000.00 15780.88

347269 Premium 80400.00 28750.00 15598.70

239801 Basic 5504.29 1700.00 1600.76

487241 Basic 4023.00 1950.00 1500.00

982111 Choice 9245.00 12300.00 11768.98

Sample output file:

Account Type    StartBalance            Deposit        Withdrawal EndBalance

------------------------------------------------------------------------------------------------------------------

234019 Premium   50100.44              25500.00     14792.91      63847o.91

234490 Choice       35000.52              14000.00     15780.88         34216.23

347269 Premium 80400.00                    28750.00     15598.70         98228.87

239801 Basic         5504.29                  1700.00        1600.76           5659.56

487241 Basic          4023.00                   1950.00     1500.00            4517.73

982111 Choice         9245.00                   12300.00   11768.98        10069.30

Program 2

Modify program 1 to include a function getEndBalance that computes the ending balance of a savings account. The function takes three arguments that hold the starting balance, total deposits, total withdrawals and returns the ending balance. The ending balance is printed in main.

Program 3

Write a function minMaxAvg that calculates and returns the min im um, maximum , and average of three integers . Then write a main program to test your function.

You r main program should:

- ask the user to enter three integers,

- calls the function minMaxAvg to compute the minimum, maximum and average of the three entered integer values , - print the minimum, maximum, and average (minimum, maximum, average need to be sen t by reference).

Sample run :

Please enter 3 numbers: 100 80 92

The average is: 90.66

The min is: 80

The max is: 100

Answer 1

//program 1

#include<iostream>
#include<fstream>
#include<string>
//include iomanip for formatted output
#include<iomanip>
#define MAX 500
using namespace std;

int main()
{
  
   double start_bal, deposit, withdrawal,balance;
   int acc_id;
   string acc_type;
   //ifstream object to read from file
   ifstream in;
   in.open("accounts.txt");
   //check if file is open
   if (!in)
   {
       cout << "Not able to open file" << endl;
       return -1;
   }
   //open file for writing
   ofstream out;
   out.open("accountsOut.txt");
   //check fi output file can be opened for writing
   if (!out)
   {
       cout << "Not able to open file for writing" << endl;
       return -1;
   }
   int count = 0;
   cout << fixed << setprecision(2);
   out << fixed << setprecision(2);
   //cout << "Account Type\tStartBalance\tDeposit\tWithdral EndBalance\n" << endl;
   out << "Account Type\tStartBalance\tDeposit\tWithdral EndBalance\n" << endl;
   while (!in.eof())
   {
       in >> acc_id >> acc_type >> start_bal >> deposit >> withdrawal;
       balance = start_bal + deposit - withdrawal;
       //output all values to file
       balance = (start_bal + deposit - withdrawal);
       if(acc_type == "Premium")
           out << setw(6) << left << acc_id << "\t" << setw(8) << left << acc_type << setw(12) << left << start_bal << setw(12) << left << deposit << setw(12) << left << withdrawal << setw(12) << left << balance+(balance * 5) / 100 << endl;
       else if(acc_type == "Choice")
           out << setw(6) << left << acc_id << "\t" << setw(8) << left << acc_type << setw(12) << left << start_bal << setw(12) << left << deposit << setw(12) << left << withdrawal << setw(12) << left << balance + (balance * 3) / 100 << endl;
       else
           out << setw(6) << left << acc_id << "\t" << setw(8) << left << acc_type << setw(12) << left << start_bal << setw(12) << left << deposit << setw(12) << left << withdrawal << setw(12) << left << balance + (balance * 1) / 100 << endl;
       //cout << setw(6) << left << acc_id << "\t"<<setw(8) << left << acc_type << setw(12) << left <<start_bal << setw(12) << left <<deposit << setw(12) <<left << withdrawal << setw(12) << left <<(start_bal + deposit - withdrawal) << endl;
       ++count;
   }

}

========================

//input file name accounts.txt

234019 Premium 50100.44 25500.00 14792.91
234490 Choice 35000.52 14000.00 15780.88
347269 Premium 80400.00 28750.00 15598.70
239801 Basic 5504.29 1700.00 1600.76
487241 Basic 4023.00 1950.00 1500.00
982111 Choice 9245.00 12300.00 11768.98

//Check accountsOut.txt file for output

Account Type   StartBalance   Deposit   Withdral EndBalance

234019   Premium 50100.44 25500.00 14792.91 63847.91
234490   Choice 35000.52 14000.00 15780.88 34216.23
347269   Premium 80400.00 28750.00 15598.70 98228.87
239801   Basic 5504.29 1700.00 1600.76 5659.57   
487241   Basic 4023.00 1950.00 1500.00 4517.73   
982111   Choice 9245.00 12300.00 11768.98 10069.30

===================================

//Program 2 and program 3 in program 1

#include<iostream>
#include<fstream>
#include<string>
//include iomanip for formatted output
#include<iomanip>
#define MAX 500
using namespace std;
//declare function for program2
double getEndBalance(double bal, double deposits, double withdrawal);
//declare function for program 3
void minMaxAvg(double &avg);

int main()
{
  
   double start_bal, deposit, withdrawal,balance;
   int acc_id;
   string acc_type;
   //ifstream object to read from file
   ifstream in;
   in.open("accounts.txt");
   //check if file is open
   if (!in)
   {
       cout << "Not able to open file" << endl;
       return -1;
   }
   //open file for writing
   ofstream out;
   out.open("accountsOut.txt");
   //check fi output file can be opened for writing
   if (!out)
   {
       cout << "Not able to open file for writing" << endl;
       return -1;
   }
   int count = 0;
   cout << fixed << setprecision(2);
   out << fixed << setprecision(2);
   //cout << "Account Type\tStartBalance\tDeposit\tWithdral EndBalance\n" << endl;
   out << "Account Type\tStartBalance\tDeposit\tWithdral EndBalance\n" << endl;
   while (!in.eof())
   {
       in >> acc_id >> acc_type >> start_bal >> deposit >> withdrawal;
       balance = start_bal + deposit - withdrawal;
       //output all values to file
       balance = (start_bal + deposit - withdrawal);
      
       if (acc_type == "Premium")
       {
           balance = getEndBalance(start_bal, deposit, withdrawal);
           cout << "Ending balance: " << balance + (balance * 5) / 100 << endl;
           out << setw(6) << left << acc_id << "\t" << setw(8) << left << acc_type << setw(12) << left << start_bal << setw(12) << left << deposit << setw(12) << left << withdrawal << setw(12) << left << balance + (balance * 5) / 100 << endl;
       }
       else if (acc_type == "Choice")
       {
           balance = getEndBalance(start_bal, deposit, withdrawal);
           cout << "Ending balance: " << balance + (balance * 3) / 100 << endl;
           out << setw(6) << left << acc_id << "\t" << setw(8) << left << acc_type << setw(12) << left << start_bal << setw(12) << left << deposit << setw(12) << left << withdrawal << setw(12) << left << balance + (balance * 3) / 100 << endl;
       }
       else
       {
           out << setw(6) << left << acc_id << "\t" << setw(8) << left << acc_type << setw(12) << left << start_bal << setw(12) << left << deposit << setw(12) << left << withdrawal << setw(12) << left << balance + (balance * 1) / 100 << endl;
           balance = getEndBalance(start_bal, deposit, withdrawal);
           cout << "Ending balance: " << balance + (balance * 1) / 100 << endl;
       }
       //cout << setw(6) << left << acc_id << "\t"<<setw(8) << left << acc_type << setw(12) << left <<start_bal << setw(12) << left <<deposit << setw(12) <<left << withdrawal << setw(12) << left <<(start_bal + deposit - withdrawal) << endl;
       ++count;
   }
   //call to test minMaxAvg for program 3
   double avg;
   minMaxAvg(avg);
}

double getEndBalance(double bal, double deposits, double withdrawal)
{
   return (bal + deposits - withdrawal);
}
void minMaxAvg(double &avg)
{
   int one, two, three;
   cout << "Enter three numbers: ";
   cin >> one >> two >> three;
   avg = (one + two + three) / 3.00;
   cout << "The average is : " << avg<<endl;
   if (one >= two && one >= three)
       cout << "The max is " << one << endl;

   if (two >= one && two >= three)
       cout << "The max is " << two << endl;

   if (three >= one && three >= two)
       cout << "The max is " << three << endl;
   if (one <= two && one <= three)
       cout << "The min is " << one << endl;

   if (two <= one && two <= three)
       cout << "The min is " << two << endl;

   if (three <= one && three <= two)
       cout << "The min is " << three << endl;
  
}

==============================

//output for program2 and program3 called in program 1

Ending balance: 63847.91
Ending balance: 34216.23
Ending balance: 98228.87
Ending balance: 5659.57
Ending balance: 4517.73
Ending balance: 10069.30
Enter three numbers: 100 80 92
The average is : 90.67
The max is 100
The min is 80