usebrass3.cpp

一本很好的C++学习的丛书！初学者必看的

// usebrass3.cpp -- polymorphic example, abstract base class
// compile with brass.cpp
#include <iostream>
#include "acctabc.h"
const int CLIENTS = 4;
const int LEN = 40;
int main()
{
   using std::cin;
   using std::cout;
   using std::endl;
   AcctABC * p_clients[CLIENTS];
   
   int i;
   for (i = 0; i < CLIENTS; i++)
   {
       char temp[LEN];
       long tempnum;
       double tempbal;
       char kind;
       cout << "Enter client's name: ";
       cin.getline(temp, LEN);
       cout << "Enter client's account number: ";
       cin >> 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 <<"Enter either 1 or 2: ";
       if (kind == '1')
           p_clients[i] = new Brass(temp, tempnum, tempbal);
       else
       {
           double tmax, trate;
           cout << "Enter the overdraft limit: $";
           cin >> tmax;
           cout << "Enter the interest rate "
                << "as a decimal fraction: ";
           cin >> trate;
           p_clients[i] = new BrassPlus(temp, tempnum, tempbal,
                                        tmax, trate);
        }
        while (cin.get() != '\n')
            continue;
   }
   cout << endl;
   for (i = 0; i < CLIENTS; i++)
   {
       p_clients[i]->ViewAcct();
       cout << endl;
   }
              
   for (i = 0; i < CLIENTS; i++)
   {
       delete p_clients[i];  // free memory
   }
   cout << "Done.\n";         
 
   return 0; 
}