programa de herencia en c++ ejemplo

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Ejemplo: ¿Cuál es el significado de herencia en C++? Escribe un ejemplo de herencia simple.

Inheritance is one of the key features of Object-oriented programming in C++.
It allows us to create a newclass(derived class) from an existing class(base class).

The derived classinherits the features from the base classand can have additional features of its own. 
  For example,classAnimal// eat() function// sleep() function;classDog:publicAnimal// bark() function;
Here, the Dog classis derived from the Animal class. 
Since Dog is derived from Animal, members of Animal are accessible to Dog.

Notice the use of the keyword publicwhile inheriting Dog from Animal.classDog:publicAnimal...;
We can also use the keywords privateandprotected instead of public

Example:// C++ program to demonstrate inheritance#includeusingnamespace std;// base classclassAnimalpublic:voideat()
        cout <<"I can eat!"<< endl;voidsleep()
        cout <<"I can sleep!"<< endl;;// derived classclassDog:publicAnimalpublic:voidbark()
        cout <<"I can bark! Woof woof!!"<< endl;;intmain()// Create object of the Dog class
    Dog dog1;// Calling members of the base class
    dog1.eat();
    dog1.sleep();// Calling member of the derived class
    dog1.bark();return0;
Output

I can eat!
I can sleep!
I can bark! Woof woof!!
Here,dog1(the object of derived classDog) can access members of the base classAnimal.
It's because Dog is inherited from Animal.

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