Revise the baseDMA-lacksDMA-hasDMA class hierarchy so that all three classes are derived from an ABC. Test the result with a program similar to the one in Listing 13.10. That is, it should feature an array of pointers to the ABC and allow the user to make runtime decisions as to what types of objects are created. Add virtual View() methods to the class definitions to handle displaying the data.

Listing 13.10.

Listing 13.10 usebrass2.cpp // usebrass2.cpp // compile with brass.cpp #include #include #include "brass.h" const int CLIENTS = 4; int main() { -- using std::cin; using std::cout; using std::endl; polymorphic example Brass p_clients [CLIENTS]; std::string temp; long tempnum; double tempbal; char kind; for (int i = 0; i < CLIENTS; i++) { cout < tempnum; cout < < "Enter opening balance: $"; cin >> tempbal; cout < < "Enter 1 for Brass Account or " < < "2 for BrassPlus Account: "; while (cin >> kind && (kind != '1' && kind != '2')) cout