list1306.cpp

teach yourself C++ in 21 days 第五版

// Listing 13.6 - An array of pointers to objects
  
#include <iostream>
using namespace std;
  
class Cat
{
  public:
    Cat() { itsAge = 1; itsWeight=5; }
    ~Cat() {}                                 // destructor
    int GetAge() const { return itsAge; }
    int GetWeight() const { return itsWeight; }
    void SetAge(int age) { itsAge = age; }
  
  private:
    int itsAge;
    int itsWeight;
};
  
int main()
{
   Cat * Family[500];
   int i;
   Cat * pCat;
   for (i = 0; i < 500; i++)
   {
      pCat = new Cat;
      pCat->SetAge(2*i +1);
      Family[i] = pCat;
   }

   for (i = 0; i < 500; i++)
   {
      cout << "Cat #" << i+1 << ": ";
      cout << Family[i]->GetAge() << endl;
   }
   return 0;
}