Initial commit

Project2/Interest.cpp

@@ -0,0 +1,129 @@
+/*
+* Cody Cook
+* Project 2
+* SNHU
+* 2023/04/02
+*/
+#include <string>
+#include <iostream>
+#include <iomanip>
+#include "Interest.h"
+#include "Menu.h"
+
+// Overloaded constructor
+Interest::Interest()
+{
+    m_initial = 0;
+    m_rate = 0;
+    m_years = 0;
+    m_monthly = 0;
+}
+
+// Overloaded constructor
+Interest::Interest(double initial, double monthly, double rate, unsigned int years)
+{
+    m_initial = initial;
+    m_rate = rate;
+    m_years = years;
+    m_monthly = monthly;
+}
+
+// Setters
+
+// Set the initial investment amount
+void Interest::setInitial(double t_initial)
+{
+    m_initial = t_initial;
+}
+
+// Set the interest rate
+void Interest::setRate(double t_rate)
+{
+    m_rate = t_rate;
+}
+
+// Set the number of years
+void Interest::setYears(unsigned int t_years)
+{
+    m_years = t_years;
+}
+
+// Set the monthly deposit amount
+void Interest::setMonthly(double t_monthly)
+{
+    m_monthly = t_monthly;
+}
+
+// Getters
+
+// Get the initial investment amount
+double Interest::getInitial() const
+{
+    return m_initial;
+}
+
+// Get the interest rate
+double Interest::getRate() const
+{
+    return m_rate;
+}
+
+// Get the number of years
+unsigned int Interest::getYears() const
+{
+    return m_years;
+}
+
+// Get the monthly deposit amount
+double Interest::getMonthly() const
+{
+    return m_monthly;
+}
+
+// calculate the balance; if t_monthlyDeposit is true, add the monthly deposit amount to the balance each month
+void Interest::calculateBalance(bool t_monthlyDeposit)
+{
+    // set variables
+    double yearEndBalance = m_initial;
+    double interestEarned = 0;
+    double interestRatePerMonth = m_rate / 100 / 12;
+    const std::string HEADERS[] = {"Year", "Year End Balance", "Interest Earned"};
+    std::string deposit;
+
+    // set the string depending on mode
+    if (t_monthlyDeposit)
+    {
+        deposit = "with";
+    }
+    else
+    {
+        deposit = "without";
+    }
+
+    // display headers
+    surroundText("Results " + deposit + " a monthly deposit", 74, '#', true);
+    std::cout << HEADERS[0] << "\t\t\t" << HEADERS[1] << "\t\t" << HEADERS[2] << "\t" << '#' << std::endl;
+
+    // for every year
+    for (unsigned int year = 1; year <= m_years; year++)
+    {
+        double yearEndInterestEarned = 0;
+
+        // for every month
+        for (int month = 1; month <= 12; month++)
+        {
+            // find the amount of interest earned, add it to the year end value, then add the interest to the balance
+            interestEarned = yearEndBalance * interestRatePerMonth;
+            yearEndInterestEarned += interestEarned;
+            yearEndBalance += interestEarned;
+
+            // if the mothly deposit is set, add it to the balance
+            if (t_monthlyDeposit)
+            {
+                yearEndBalance += m_monthly;
+            }
+        }
+        // output the details
+        printDetails(year, yearEndBalance, yearEndInterestEarned);
+    }
+}