Question

Must be written in C++

Bank Charges A bank charges $15 per month plus the following check fees for a commercial checking account: $0.10 per check each for fewer than 20 checks (1-19) $0.08 each for 20–39 checks $0.06 each for 40–59 checks $0.04 each for 60 or more checks Write a program that asks for the number of checks written during the past month, then computes and displays the bank’s fees for the month. Input Validation: Display an error message if input is not numeric Display an error message if input is numeric and less than 0. Do not compute a service fee if input is non-numeric or negative Make sure that the dollar amount is displayed with 2 places after the decimal point

Note: The switch statement cannot be used here since there is no "equal to" condition. The conditions deal with values in a range.

Sample output from my version of Assignment 2

The following table shows 3 test runs of the program. Use input is shown in blue, highlighted text.

Test Run 1	Number of checks written this month: asd Number of checks must be numeric.
Test Run 2	Number of checks written this month: -1 Number of checks must be zero or more.
Test Run 3	Number of checks written this month: 10 Fixed fees            is $ 15.00 Check fees this month is   $ 1.00 (10 Checks @ $0.10 per check) The bank fee this month is $ 16.00
Test Run 4	Number of checks written this month: 62 Fixed fees            is $ 15.00 Check fees this month is   $ 2.48 (62 Checks @ $0.04 per check) The bank fee this month is $ 17.48

Format and specifications:

Make sure that the dollar amount is displayed with 2 places after the decimal point.

Make sure all identifiers are declared.

Variables contain values. Variable names should follow these standards:

• Variable names must start with a lower case alphabet.

• Variable names in the program should always be nouns, and not verbs.

  • For example, numberOfClasses is a valid variable name, displayName is not, since it sounds like an action, and not a container.

• Variable names must be at least 5 characters long.

  • For example, naming a variable dist does not meet my programming standard, since it is only 4 characters long. Instead name it dist_from_home.

• Variable names must be self-documenting. This means that the name of the variable should provide an indication of what it is being used for in a program.

  • For example, naming a variable _name does not meet my programming standard. Instead, use something like student_name or product_name

• 1-character variable names are only permitted when used as a subscript variable to access an element in a list (in Python) or in an array (in C++).

• Do NOT use global variables!

• Do not write infinite loops with break statements.

Functions perform actions. Function names should follow these standards:

• Function names must start with a lower case alphabet.

• Function names in the program should always be verbs, and not nouns.

  • For example, displayName or disp_name is a valid function name, numberOfClasses is not, since it sounds like a container/variable.

• Function names must be at least 5 characters long.

  • For example, naming a function disp does not meet my programming standard, since it is only 4 characters long. Instead name it something like disp_student_info.

• Function names must be self-descriptive or self-documenting. This means that the name of the function should provide an indication of what it is being used for in a program.

  • For example, naming a function display does not meet programming standard. Instead, use display_student_name or display_instuct_name

• Functions should not contain multiple return statements. Use decision structures to set up the value in a variable and return that variable from the function instead of using multiple return statements in a decision structure. (This standard does not apply to recursive functions)

• The function definition for the main function should be before all other function definitions in the program.

Object names must be nouns, since they hold information about a business entity. Accessor and Mutator functions in a class must follow the following standards:

• Mutator functions must be written as follows:

  • Mutator functions do not return a value

  • Mutator functions must start with the word set.

  • Mutator functions are invoked with 1 argument

• Accessor functions must be written as follows:

  • Accessor functions always return a value

  • Accessor functions must start with the word get.

  • Accessor functions are invoked without any arguments

• Do not use goto statements.

• Statements inside a block should be indented.

• Statements that execute as part of an if-block, should be on separate lines.

Functions in C++

Programs that contain functions must follow these guidelines:

• The int main function must be the first function definition the the program

• All other functions must be defined after int main.

• Place function prototypes for all functions (except int main) before the int main function definition.

Answer 1

#include <iostream>
#include <iomanip>

using namespace std;

double getCheckFeesRate(int numberOfChecks);
void displayBankFees(int numberOfChecks, double fixedBankFees, double checkFeesRate, double checkFees, double totalBankFees);

int main(){
    int numberOfChecks;
    const double fixedBankFees = 15;
    double checkFeesRate, checkFees, totalBankFees;
    cout << "Number of checks written this month: ";
    if(cin >> numberOfChecks){
        if(numberOfChecks >= 0){
            //Get check fees rate
            checkFeesRate = getCheckFeesRate(numberOfChecks);
            //Calculate bank fees
            checkFees = numberOfChecks * checkFeesRate;
            totalBankFees = fixedBankFees + checkFees;
            //Display bank fees
            displayBankFees(numberOfChecks, fixedBankFees, checkFeesRate, checkFees, totalBankFees);
        }
        else{
            cout << "Number of checks must be zero or more.";
        }
    }
    else{
        cout << "Number of checks must be numeric";
    }
    return 0;
}

//Function to get check fees rate
double getCheckFeesRate(int numberOfChecks){
    double checkFeesRate;
    if (numberOfChecks >= 60)
        checkFeesRate = 0.04;
    else if (numberOfChecks >= 40)
        checkFeesRate = 0.06;
    else if (numberOfChecks >= 20)
        checkFeesRate = 0.08;
    else
        checkFeesRate = 0.10;
    return checkFeesRate;
}

//Function to display bank fees
void displayBankFees(int numberOfChecks, double fixedBankFees, double checkFeesRate, double checkFees, double totalBankFees){
    cout << "Fixed fees is $ " << setprecision(2) << fixed << fixedBankFees << endl;
    cout << "Check fees this month is $ " << setprecision(2) << fixed << checkFees << " ("
         << numberOfChecks << " Checks @ $" << checkFeesRate << " per check)" << endl;
    cout << "The bank fees this month is $ " << setprecision(2) << fixed << totalBankFees << endl;
}

OUTPUT FOR TEST RUN 1:

CAUsers Shubham\Desktop\Main.exe Number of checks written this month: asd Number of checks must be numeric Process exited after 2.17 seconds with return value 0 Press any key to continue

OUTPUT FOR TEST RUN 2:

CAUsers\Shubham\Desktop\Main.exe Number of checks written this month: -1 Number of checks must be zero or more. Process exited after 1.842 seconds with return value 0 Press any key to continue

OUTPUT FOR TEST RUN 3:

C:AUsers Shubham\Desktop Main.exe Number of checks written this month: 10 Fixed fees is $ 15.00 Check fees this month is $ 1.00 (10 Checks @ $0.10 per check) The bank fees this month is $ 16.00 Process exited after 3.381 seconds with return value 0 Press any key to continue

OUTPUT FOR TEST RUN 4:

C:AUsers\Shubham\Desktop\Main.exe Number of checks written this month: 62 Fixed fees is $ 15.00 Check fees this month is $ 2.48 (62 Checks @ $0.04 per check) The bank fees this month is $ 17.48 Process exited after 1.872 seeconds with return value 0 Press any key to continue ,