// To use, enter a value for the width, length. and height, followed by a 'y' or 'n' character to loop back or end tye program. #include using namespace std; //Global Variables double cubeLength = 0; double cubeWidth = 0; double cubeHeight = 0; double cubeSurfaceArea = 0; double cubeVolume = 0; bool valid = true; char choice; int main() { // Program loop for multiple tries do { //Ask user for cubeLength and validate input for integer values do { valid = true; cout << "Please enter a numerical value for the length of a cube" <> cubeLength; if (cin.fail() | cubeLength < 0) { valid = false; cin.clear(); cin.ignore(INT_MAX, '\n'); cout << "Invalid cube length. Input must be a positive number." << endl; } } while (!valid); //Ask user for cubeWidth and validate input for integer values do { valid = true; cout << "Please enter a numerical value for the width of a cube" <> cubeWidth; if (cin.fail() | cubeWidth < 0) { valid = false; cin.clear(); cin.ignore(INT_MAX, '\n'); cout << "Invalid cube width. Input must be a positive number." << endl; } } while (!valid); //Ask user for cubeHeight and validate input for integer values do { valid = true; cout << "Please enter a numerical value for the height of a cube" <> cubeHeight; if (cin.fail() | cubeHeight < 0) { valid = false; cin.clear(); cin.ignore(INT_MAX, '\n'); cout << "Invalid cube height. Input must be a positive number." << endl; } }while (!valid); //Perform calculations for surface area and volume then assign them to their associated variables if (cubeLength >= 1 && cubeWidth >= 1 && cubeHeight >= 1) { cubeSurfaceArea = ((2*(cubeWidth*cubeLength))+(2*(cubeLength*cubeHeight))+(2*(cubeWidth*cubeHeight))); cubeVolume = (cubeWidth*cubeLength*cubeHeight); } else { cout << "Sorry, one or more cube inputs is invalid. Ending program. Please restart and try again." << endl; return 0; } //Output surface area and volume to user cout << "Length = " << cubeLength << " Width = " << cubeWidth << " Height = " << cubeHeight << endl; cout << "The surface area of your cube is " << cubeSurfaceArea << "." << endl; cout << "The volume of your cube is " << cubeVolume << "." << endl; cout << "Would you like to try again? (y/n)" << endl; cin >> choice; } while (choice != 'n'); //End program return 0; }

Cube Calculator (0.5)