#include
using std::cout; // this file uses std::cout
class Animal
{
public:
Animal():itsAge(1) {
cout << "Animal constructor...\n";
}
virtual ~Animal() {
cout << "Animal destructor...\n";
}
virtual void Speak() const {
cout << "Animal speak!\n";
}
protected:
int itsAge;
};
class Cat: public Animal
{
public:
Cat() {
cout << "Cat constructor...\n";
}
~Cat() {
cout << "Cat destructor...\n";
}
void Speak()const {
cout << "Meow\n";
}
void Miao() const {
cout << "Miao\n";
}
};
class Dog: public Animal
{
public:
Dog() {
cout << "Dog Constructor...\n";
}
~Dog() {
cout << "Dog destructor...\n";
}
void Speak()const {
cout << "Woof!\n";
}
};
int main()
{
const int NumberAnimals = 3;
Animal* animalArray[NumberAnimals];
int i;
animalArray[0] = new Dog;
animalArray[1] = new Cat;
animalArray[2] = new Cat;
for (i=0; i {
animalArray[i]->Speak();
Cat *pRealCat = dynamic_cast (animalArray[i]);
if (pRealCat)
pRealCat->Miao();
else
cout << "not a cat!\n";
delete animalArray[i];
cout << "\n";
}
return 0;
}
Animal constructor...
Dog Constructor...
Animal constructor...
Cat constructor...
Animal constructor...
Cat constructor...
Woof!
not a cat!
Dog destructor...
Animal destructor...
Meow
Miao
Cat destructor...
Animal destructor...
Meow
Miao
Cat destructor...
Animal destructor...