C++ OOP Inheritance

• Base and Derived Classes
  class derived-class: access-specifier base-class

Inheritance

• public inheritance makes public members of the base class public in the derived class, and the protected members of the base class remain protected in the derived class.
• protected inheritance makes the public and protected members of the base class protected in the derived class.
• private inheritance makes the public and protected members of the base class private in the derived class.

class Base {
    public:
        int x;
    protected:
        int y;
    private:
        int z;
};
 
class PublicDerived: public Base {
    // x is public
    // y is protected
    // z is not accessible from PublicDerived
};
 
class ProtectedDerived: protected Base {
    // x is protected
    // y is protected
    // z is not accessible from ProtectedDerived
};
 
class PrivateDerived: private Base {
    // x is private
    // y is private
    // z is not accessible from PrivateDerived
}