/** * @author Jane Programmer * @cwid 123 45 678 * @class COSC 2336, Spring 2019 * @ide Visual Studio Community 2017 * @date January 12, 2019 * @assg Assignment 02 * * @description Assignment 02, practice using C++ classes. In this assignment * we encapsulate a retirement planning object, that can set the amount of periodic * deposits, the interest rate, and time in years we have to save. The * retirement account planner object can calculate retirement savings and can * do planning to determine how much we need to save in order to reach a * retirement goal. */ #include #include #include #include #include using namespace std; /** main * The main entry point for this program. Execution of this program * will begin with this main function. * * @param argc The command line argument count which is the number of * command line arguments provided by user when they started * the program. * @param argv The command line arguments, an array of character * arrays. * * @returns An it value indicating program exit status. Usually 0 * is returned to indicate normal exit and a non-zero value * is returned to indicate an error condition. */ int main(int argc, char** argv) { // test constructor cout << "=== Testing class creation using constructor..................." << endl << endl; //RetirementAccount account(100.00, 10.0, 0.035, 22.0); // test getter methods cout << "=== Testing getter methods..................." << endl; //cout << "Account: " << endl; //cout << " D (deposit amount) = $" << fixed << setprecision(2) << account.get_D() << endl; //cout << " m (periods per year) = " << fixed << setprecision(2) << account.get_m() << endl; //cout << " r (interest rate) = " << fixed << setprecision(4) << account.get_r() << endl; //cout << " t (time in years) = " << fixed << setprecision(2) << account.get_t() << endl; //cout << endl; // test tostring() cout << "=== Testing tostring() method..................." << endl; //cout << "Account: " << endl << account.tostring() << endl; //cout << endl; // test setter methods cout << "=== Testing setter methods..................." << endl; //account.set_D(500.00); //account.set_m(12.0); //account.set_r(0.048); //account.set_t(25.00); //cout << "Account: " << endl << account.tostring() << endl; // test retirement savings calculation cout << "=== Testing retirement savings calculations..................." << endl; //cout << "My retirement savings: $" // << fixed << setprecision(2) // << account.calculateRetirementSavings() << endl; //cout << endl; // test retirement planning calculations cout << "=== Testing retirement planning calculations..................." << endl; //double newD = account.planRetirementDeposits(1000000.00); //cout << "In order to save 1 million dollars, we need to make monthly deposits of $" // << fixed << setprecision(2) // << newD; //cout << endl; //account.set_D(newD); //cout << "If we set our deposit to this new amount..." << endl; //cout << "Account: " << endl << account.tostring() << endl; //cout << "My retirement savings: $" // << fixed << setprecision(2) // << account.calculateRetirementSavings() << endl; //cout << endl; // an additional test of savings and planning calculations cout << "=== Second test on account2 of savings and planning..................." << endl; //RetirementAccount account2(650.00, 9.0, 0.035, 30.0); //cout << "Account 2:" << endl << account2.tostring() << endl; //cout << "My retirement savings: $" // << fixed << setprecision(2) // << account2.calculateRetirementSavings() << endl; //cout << endl; //newD = account2.planRetirementDeposits(2000000.00); //cout << "In order to save 2 million dollars, we need to make deposits of $" // << fixed << setprecision(2) // << newD; //cout << endl; //account2.set_D(newD); //cout << "If we set our deposit to this new amount..." << endl; //cout << "Account: " << endl << account2.tostring() << endl; //cout << "My retirement savings: $" // << fixed << setprecision(2) // << account2.calculateRetirementSavings() << endl; //cout << endl; // more tests, demonstrate using arrays of classes and looping over classes // create 10 RetirementAccount's to perform some comparison calculations cout << "=== Larger number of tests, compare effect of increasing monthly deposit amount..................." << endl; //const int NUM_PLANS = 10; //RetirementAccount plan[NUM_PLANS]; // set all accounts with same interest rate, periods and time, but different // deposit amounts //double D = 500.00; // base amount to deposit. //double m = 12.0; // make monthly deposits //double r = 0.04; // compound interest rate. //double t = 30.0; // save for retirement for 30 years //for (int i = 0; i < NUM_PLANS; i++) //{ // plan[i].set_D(D + (i * 100.0)); // plan[i].set_m(m); // plan[i].set_r(r); // plan[i].set_t(t); // cout << "Plan " << i << ":" << endl; // cout << plan[i].tostring(); // cout << " Total Savings: " // << fixed << setprecision(2) // << plan[i].calculateRetirementSavings() << endl; //} // return 0 to indicate successful completion return 0; }