Demo No. 3C Inheritance III </HEAD> <BODY> <H1> <CENTER><B> <FONT SIZE= 4>Inheritance</FONT></B> </CENTER></H1> <H2> <FONT SIZE= 3> A derived class has access to protected members of a base class</FONT> </H2> <P> <HR> /* <BR> <PRE> #include <iostream.h> class Base { protected: int Base_protected_data_x; public: Base(): Base_protected_data_x(0) {} void Set(int i){ Base_protected_data_x = i; } int Get() { return Base_protected_data_x; } }; class Derived: public Base { private: int Derived_data_x; public: Derived():Derived_data_x(0){} int function(){ return Base_protected_data_x; } }; void main() { Base B; cout << "Base_protected_data_x is: " << B.Get() << endl ; B.Set(10); cout << "Base_protected_data_x is: " << B.Get() << endl ; Derived D; cout << "In derived - Base_protected_data_x is: " << D.Get() << endl ; D.Set(100); cout << "In derived - Base_protected_data_x is: " << D.Get() << endl ; cout << "In derived - Base_protected_data_x is: " << D.function() << endl ; } /* Base_protected_data_x is: 0 Base_protected_data_x is: 10 In derived - Base_protected_data_x is: 0 In derived - Base_protected_data_x is: 100 In derived - Base_protected_data_x is: 100 Press any key to continue */ </PRE> <BR> <A HREF="week2.html">Go Back to Inheritance</A> </BODY> </HTML>