Overriding Functions in base class - C++ Class

C++ examples for Class:Polymorphism

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Description

Overriding Functions in base class

Demo Code

#include <iostream> 
   //  w w  w .ja v a2s .c o m
enum COLOR { RED, BLUE, WHITE, BLACK, EE, YELLOW }; 
   
class Pet 
{ 
public: 
    // constructors 
    Pet() { std::cout << "Pet constructor ...\n"; } 
    ~Pet() { std::cout << "Pet destructor ...\n"; } 
   
    // other member functions 
    void speak() const { std::cout << "Pet sound!\n"; } 
    void sleep() const { std::cout << "Shhh. I'm sleeping.\n"; } 
   
protected: 
    int age; 
    int weight; 
}; 
   
class Dog : public Pet 
{ 
public: 
    // constructors 
    Dog() { std::cout << "Dog constructor ...\n"; } 
    ~Dog() { std::cout << "Dog destructor ...\n"; } 
   
    // other member functions 
    void wagTail() { std::cout << "Tail wagging ...\n"; } 
    void begForFood() { std::cout << "Begging for food ...\n"; } 
    void speak() const { std::cout << "Woof!\n"; } 
   
private: 
    COLOR color; 
}; 
   
int main() 
{ 
    Pet bigAnimal; 
    Dog fido; 
    bigAnimal.speak(); 
    fido.speak(); 
    return 0; 
}

Result


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