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BankApp.cpp

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+#include <iostream>
+#include <iomanip>
+#include "BankApp.h"
+
+using namespace std;
+
+//FREE FUNCTIONS
+
+// convert double to string that can be printed in monetary format
+string ToString(double numToConvert){
+    stringstream stream;
+    stream << fixed << setprecision(2) << setfill('0') << numToConvert;
+    return "$" + stream.str();
+}
+
+// clear the terminal window
+void clearWindow(){
+
+    #ifdef _WIN32
+        system("CLS");
+    #endif
+
+    #ifdef __unix__
+        system("clear");
+    #endif
+}
+
+// pause the program until the user presses enter
+void programPause(){
+    //string temp;
+    #ifdef _WIN32
+        system("pause");
+    #endif
+
+    #ifdef __unix__
+        cin.ignore();
+        cout << "Press enter to continue...";
+        cin.get(); //"pause" the program until the user presses enter
+        system("clear"); //clear the console
+    #endif
+}
+
+// prompt user for input to initialize BankApp object
+void getInput(BankApp& account){
+    double doubleInput;
+    int intInput;
+
+    cout << "**********************************" << endl;
+    cout << "********** Data Input ************" << endl;
+
+    cout << "Initial Investment Amount: $";
+    cin >> doubleInput;
+    account.SetInitInvestment(doubleInput);
+
+    cout << "Monthly Deposit: $";
+    cin >> doubleInput;
+    account.SetMonthlyDeposit(doubleInput);
+
+    cout << "Annual Interest: %";
+    cin >> doubleInput;
+    account.SetAnnualInterest(doubleInput);
+
+    cout << "Number of years: ";
+    cin >> intInput;
+    account.SetNumYears(intInput);
+
+    programPause();
+}
+
+//BANKAPP CLASS FUNCTIONS
+
+//constructor
+BankApp::BankApp(){
+    m_initInvestment = new double;
+    *m_initInvestment = 1.00;
+    m_monthlyDeposit = new double;
+    *m_monthlyDeposit = 1.00;
+    m_annualInterest = new double;
+    *m_annualInterest = 1.00;
+    m_numYears = new int;
+    *m_numYears = 1;
+}
+
+//SETTERS
+
+//set initial investment
+void BankApp::SetInitInvestment(double t_investment){
+    *m_initInvestment = t_investment;
+}
+
+//set monthly deposits
+void BankApp::SetMonthlyDeposit(double t_deposit){
+    *m_monthlyDeposit = t_deposit;
+}
+
+//set annual interest percentage
+void BankApp::SetAnnualInterest(double t_interest){
+    *m_annualInterest = t_interest;
+}
+
+//set number of years to calculate
+void BankApp::SetNumYears(int t_years){
+    *m_numYears = t_years;
+}
+
+//GETTERS
+
+//get the initial investment value
+double BankApp::GetInitInvestment(){
+    return *m_initInvestment;
+}
+
+// get the monthly deposit value
+double BankApp::GetMonthlyDeposit(){
+    return *m_monthlyDeposit;
+}
+
+//get the annual interest value
+double BankApp::GetAnnualInterest(){
+    return *m_annualInterest;
+}
+
+//get the number of years to calculate
+int BankApp::GetNumYears(){
+    return *m_numYears;
+}
+
+//OBJECT RELATED FUNCTIONS
+
+//print the values that the user entered
+void BankApp::PrintValues() {
+    cout << "**********************************" << endl;
+    cout << "********** Data Input ************" << endl;
+    cout << fixed << setprecision(2) << setfill('0');
+    cout << "Initial Investment Amount: $" << *m_initInvestment << endl;
+    cout << "Monthly Deposit: $" << *m_monthlyDeposit << endl;
+    cout << "Annual Interest: %" << *m_annualInterest << endl;
+    cout << "Number of years: " << *m_numYears << endl;
+    cout << endl;
+}
+
+//calculate year-end balance and earned interest if monthly deposits are NOT made
+void BankApp::WithoutDeposit(){
+    double balance = *m_initInvestment;
+    double monthlyRate = ((*m_annualInterest/100)/12);
+    double yearlyInterestEarned;
+    double tempInterest;
+    unsigned int i;
+    unsigned int j;
+
+    cout << "    Balance and Interest With Additional Monthly Deposits       " << endl;
+    cout << setfill('=') << setw(64) << '=' << endl;
+    cout << setfill(' ') << setw(6) << "Year";
+    cout << setw(23) << "Year End Balance";
+    cout << setw(31) << "Year End Earned Interest" << endl;
+    cout << setfill('-') << setw(64) << '-' << endl;
+
+    // for each year in m_numYears calculate balance and yearly earned interest
+    for (i = 1; i <= *m_numYears; ++i){
+
+        // calculate the balance and earned interest for each month of the year
+        // this should be calculated on a monthly bases otherwise the results will be incorrect
+        for (j = 0; j < 12; ++j){
+
+            tempInterest = balance * monthlyRate;
+            yearlyInterestEarned = yearlyInterestEarned + tempInterest;
+            balance = balance + tempInterest;
+        }
+
+        cout << setw(6) << setfill(' ') << i;
+        cout << setw(23) << ToString(balance);
+        cout << setw(31) << ToString(yearlyInterestEarned) << endl;
+
+        yearlyInterestEarned = 0;
+    }
+    cout << endl;
+}
+
+//calculate year-end balance and earned interest if monthly deposits are made
+void BankApp::WithDeposit(){
+    double balance = *m_initInvestment;
+    double monthlyRate = ((*m_annualInterest/100)/12);
+    double yearlyInterestEarned;
+    double tempInterest;
+    unsigned int i;
+    unsigned int j;
+
+    cout << "    Balance and Interest With Additional Monthly Deposits       " << endl;
+    cout << setfill('=') << setw(64) << '=' << endl;
+    cout << setfill(' ') << setw(6) << "Year";
+    cout << setw(23) << "Year End Balance";
+    cout << setw(31) << "Year End Earned Interest" << endl;
+    cout << setfill('-') << setw(64) << '-' << endl;
+
+    // for each year in m_numYears calculate balance and yearly earned interest
+    for (i = 1; i <= *m_numYears; ++i){
+
+        // calculate the balance and earned interest for each month of the year
+        // balance and earned interest must be calculated for each month in order to get the correct results for the yearly total
+        for (j = 0; j < 12; ++j){
+
+            balance = (balance + *m_monthlyDeposit);
+            tempInterest = balance * monthlyRate;
+            yearlyInterestEarned = yearlyInterestEarned + tempInterest;
+            balance = balance + tempInterest;
+        }
+
+        cout << setw(6) << setfill(' ') << i;
+        cout << setw(23) << ToString(balance);
+        cout << setw(31) << ToString(yearlyInterestEarned) << endl;
+
+        yearlyInterestEarned = 0;
+    }
+    cout << endl;
+}
+
+//calculate the current balance and earned interest at the end of each month
+//this is only used for testing to confirm that the correct values are being calculated
+void BankApp::ByMonth(){
+    double balance = *m_initInvestment;
+    double monthlyRate = ((*m_annualInterest/100)/12);
+    int numMonths = *m_numYears * 12;
+    double interestEarned;
+    double tempInterest;
+    unsigned int i;
+
+    cout << "                   Balance and Interest Broken Down by Month" << endl;
+    cout << setfill('=') << setw(100) << '=' << endl;
+    cout << setfill(' ') << setw(6) << "Month";
+    cout << "     Opening Amount";
+    cout << "     Deposited Amount";
+    cout << "         $Total";
+    cout << "         $Interest";
+    cout << "     Closing Balance" << endl;
+    cout << setfill('-') << setw(100) << '-' << endl;
+
+    for (i = 1; i <= numMonths; ++i){
+
+        cout << setfill(' ');
+        cout << setw(6) << i; //month
+        cout << setw(19) << ToString(balance); //original balance
+        cout << setw(21) << ToString(*m_monthlyDeposit); //deposit amount
+
+        balance = (balance + *m_monthlyDeposit);
+
+        cout << setw(15) << ToString(balance); //original balance + deposit amount
+
+        tempInterest = balance * monthlyRate;
+
+        cout << setw(18) << ToString(tempInterest); //combined interest amount
+
+        interestEarned = interestEarned + tempInterest;
+        balance = balance + tempInterest;
+
+        cout << setw(20) << ToString(balance) << "\n\n"; //balance + deposit + interest
+    }
+    cout << endl;
+}

BankApp.h

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+#ifndef BANKINGAPP_BANKAPP_H
+#define BANKINGAPP_BANKAPP_H
+#include <iostream>
+using namespace std;
+
+class BankApp{
+public:
+
+    //constructor
+    BankApp();
+
+    //setters
+    void SetInitInvestment(double t_investment);
+    void SetMonthlyDeposit(double t_deposit);
+    void SetAnnualInterest(double t_interest);
+    void SetNumYears(int years);
+
+    //getters
+    double GetInitInvestment();
+    double GetMonthlyDeposit();
+    double GetAnnualInterest();
+    int GetNumYears();
+
+    //object specific functions
+    void PrintValues();
+    void WithoutDeposit();
+    void WithDeposit();
+    void ByMonth();
+
+private:
+
+    // class variables
+    double* m_initInvestment;
+    double* m_monthlyDeposit;
+    double* m_annualInterest;
+    int* m_numYears;
+
+};
+
+
+#endif //BANKINGAPP_BANKAPP_H

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.21)
+project(bankingApp)
+
+set(CMAKE_CXX_STANDARD 14)
+
+add_executable(bankingApp main.cpp BankApp.cpp BankApp.h)