inheritence in c++

inheritance:

it is a mechanism in which one class acquire the properties of another class allow us to create new class derived class from existing class parent class derived class inherits the function from base class and have additional functions to.

we use access specifiers to provide data security

access specifier:

        i.            public : using this public keyword we allow anyone to access data anywhere he wants

      ii.            protected: only child classes access data or class it self

    iii.            private :no one can access data only class access the data

	Public	Protected	Private
Within class	Yes	Yes	Yes
Child class	Yes	Yes	No
Main	Yes	No	No

code:

#include<iostream>

using namespace std;

class animal

{

    public:

    int legs=4;

    int tail=1;

};

class dog: public animal

{

    public:

    void disp()

    {

    cout<<"i provide security in day because i sleep in day"<<endl;

}

};

int main()

{

    dog d1;

    cout<<"legs are ="<<d1.legs<<endl;

    cout<<"tail ="<<d1.tail<<endl;

    d1.disp();

}