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  1. #include <iostream>
  2.  
  3. class Animal
  4. {
  5. public:
  6. 	Animal() { std::cout << "Animal::Animal" << std::endl; }
  7. 	virtual ~Animal() { std::cout << "Animal::~Animal" << std::endl; }
  8. 	virtual void DoSound() {}
  9. };
  10.  
  11. class Cat : public Animal
  12. {
  13. public:
  14. 	Cat() { std::cout << "Cat::Cat" << std::endl; }
  15. 	~Cat() { std::cout << "Cat::~Cat" << std::endl; }
  16. 	void DoSound() { std::cout << "Mew!" << std::endl; }
  17. };
  18.  
  19. class Dog : public Animal
  20. {
  21. public:
  22. 	Dog() { std::cout << "Dog::Dog" << std::endl; }
  23. 	~Dog() { std::cout << "Dog::~Dog" << std::endl; }
  24. 	void DoSound() { std::cout << "Wow" << std::endl; }
  25. };
  26.  
  27. class Frog : public Animal
  28. {
  29. public:
  30. 	Frog() { std::cout << "Frog::Frog" << std::endl; }
  31. 	~Frog() { std::cout << "Frog::~Frog" << std::endl; }
  32. 	void DoSound() { std::cout << "Croc!" << std::endl; }
  33. };
  34.  
  35. int main()
  36. {
  37. 	Animal* animal1 = new Cat();
  38. 	Animal* animal2 = new Dog();
  39. 	Animal* animal3 = new Frog();
  40.  
  41. 	animal1->DoSound();
  42. 	animal2->DoSound();
  43. 	animal3->DoSound();
  44.  
  45. 	delete animal1;
  46. 	delete animal2;
  47. 	delete animal3;
  48.  
  49. 	return 0;
  50. }
  51.  
Success #stdin #stdout 0.01s 2820KB
comments (?)
stdin 
Standard input is empty
stdout 
Animal::Animal
Cat::Cat
Animal::Animal
Dog::Dog
Animal::Animal
Frog::Frog
Mew!
Wow
Croc!
Cat::~Cat
Animal::~Animal
Dog::~Dog
Animal::~Animal
Frog::~Frog
Animal::~Animal
https://ideone.com/KhUnI
language:
C++ (gcc 8.3)
created:
13 years ago
visibility:
public

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