COSC-1336-Programming-Fundamentals/Module 4/Module4LabExtraCredit.cpp at main · reycarrorg/COSC-1336-Programming-Fundamentals · GitHub

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//************************************************************************
// Author: Rolando Carreon
// Date: mar 28 2025
// Language: C++
// Assignment: Demo
// Description: Hello World Program
//************************************************************************

#include<iostream>
#include<string> // used for getData
#include<iomanip> // used for setting precision
using namespace std;

//function prototypes
// finction asks user to enter the relvant data
void getData(string&, int&, double&, double&);

// function computes and returns tax owed
void taxAmount(string&, int&, double&, double&, double&);


int main()
{
    // declare local variables
    string maritalStatus;
    int children;
    double grossSalary;
    double pensionRate;
    double taxOwed;

    getData(maritalStatus, children, grossSalary, pensionRate);


    taxAmount(maritalStatus, children, grossSalary, pensionRate, taxOwed);

    cout << fixed << setprecision(2); // set by 2 decimal places
    cout << "Your Federal Tax Amount is: $" << taxOwed << endl;


    return 0;
}

// funciton definitions

void getData(string& maritalStatus, int& children,
            double& grossSalary, double& pensionRate)
{

    do
    {
        cout << "What is your marital status[married/single]: ";
        cin >> maritalStatus;

        if( maritalStatus == "Single" )
        {
            children = 0;
            break;
        }
        else if( maritalStatus == "Married" )
        {
            cout << "How many children do you have under 14 years old: ";
            cin >> children;
            break;
        }
        else
        {
            cout << "Invalid choice. Try Again." << endl;
        }
    } while ( maritalStatus != "Single" && maritalStatus != "Married" );


    cout << "What is your gross salary(if married at the two salaries "
         << "together): ";
    cin >> grossSalary;

    cout << "What percentage of your income is contributed to\n"
         << "a pension fund [0.0 - 6.0 as a percentage]: ";
    cin >> pensionRate;

    pensionRate = pensionRate / 100; // covert to decimal place

}


void taxAmount(string& maritalStatus, int& children,
               double& grossSalary, double& pensionRate, double& taxOwed)
{
    double taxRate;
    double pensionFund;
    double taxableSalary;

    // calculate total pension contribution so far
    pensionFund = pensionRate * grossSalary;

    // subtract pension contribution from the taxable income
    taxableSalary = grossSalary - pensionFund;


    // looks to see how much exemption is owed based on marital status
    if( maritalStatus == "Single" )
       taxableSalary -= 4000; // exemption ammoutn for single people
    else if( maritalStatus == "Married" )
        taxableSalary -= 7000; // exemption amount for married people


    if( taxableSalary <= 15000 )
    {
        taxRate = 0.15;
        taxOwed = taxableSalary * taxRate;
    }
    else if( taxableSalary >= 15001 && taxableSalary <= 40000 )
    {
        taxRate = 0.25;
        taxOwed = 2250 + (taxableSalary - 15000) * taxRate;
    }
    else
    {
        taxRate = 0.35;
        taxOwed = 8460 + (taxableSalary - 40000) * taxRate;
    }
}