Virtual methods : virtual method « Class « Visual C++ .NET

1. Visual C++ .NET
2. Class
3. virtual method

Virtual methods

 

#include "stdafx.h"
using namespace System;

ref class Animal{
public:
    virtual void Speak (){
        Console::WriteLine("Animal");
    }
};

ref class Dog : public Animal{
public:
    virtual void Speak() override{
        Console::WriteLine("Dog");
    }
};

ref class Puppy : public Dog{
public:
    virtual void Yip() = Dog::Speak
    {
        Console::WriteLine("Puppy");
    }
};

ref class Cat : public Animal{
public:
    virtual void Speak() new
    {
        Console::WriteLine("Cat");
    }
};

ref class Tiger : public Cat{
public:
  virtual void Growl() = Animal::Speak, Cat::Speak
    {
        Console::WriteLine("Tiger");
    }
};

void main()
{
    array<Animal^>^ animals = gcnew array<Animal^> { 
        gcnew Animal(), 
        gcnew Dog(), 
        gcnew Puppy(),
        gcnew Cat(), 
        gcnew Tiger() 
   };

    for each ( Animal ^a in animals){
        a->Speak();
    }

    Console::WriteLine();

    Animal^ cat1 = gcnew Cat();
    Cat^  cat2   = gcnew Cat();
    Cat^  tiger  = gcnew Tiger();

    cat1->Speak();
    cat2->Speak();
    tiger->Speak();
} 

   
  

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