Explain public derivation, C/C++ Programming

Assignment Help:

Public derivation

Public derivations are much more common than private derivations. In this situation:

  • The private members inherited from the base class are inaccessible to new members' functions in the derived class.
  • The public members inherited from the base class might be accessed by new members functions in the derived class and by instances of the derived class.

 e.g.

                class base

                 {

                  private :

                                                int number;

                 };

                class derived : public base

                 {

                  public :

                                                void f()

                                                 {

++number;     // Private base member not

                 accessible

                                                 }

                 };

The compiller error message is ' base :: number ' is not accessible in the function derived::f();

Here, only if the number is public then you can access it.

 

 


Related Discussions:- Explain public derivation

Stuctrue , To store a date use a structure that contains three members date...

To store a date use a structure that contains three members date, month and year. If the dates are equal then display message “Equal” otherwise “Unequal” Program structure: main()

Stack, write a program in c language to implement stacks in a single array

write a program in c language to implement stacks in a single array

Need help, how to make basics strong and best logic skills what are the bes...

how to make basics strong and best logic skills what are the best way to be a expert programmer ? what counts a lot knowledge or practice?

What is scope resolution operator, Scope Resolution operator: The scope...

Scope Resolution operator: The scope resolution operator: : is used to access global variable in the inner block. When global and local variable are identical name the scope re

Binary options ea for directfx and signalpush, Binary Options EA for Direct...

Binary Options EA for DirectFX and SignalPush Project Description: I want a programmer who will build an EA based on my three types of Binary strategy's using two Indicators.

C program to search for a given character in a string, Program is to search...

Program is to search for a given character in a string: Program is to search for a given character in a string and print point of match char *stsearch(char *string, char sea

Example., I need the c++ program of class bank accout including balance,rat...

I need the c++ program of class bank accout including balance,rate of interests

Setup and source code with nice user interface, Virtual Webcam effects - Se...

Virtual Webcam effects - Setup and Source code with Nice User Interface Project Description: I want a similar webcam effects application which can apply effects to webcam fee

Explain the shift operators, The Shift Operators There are 2 shift oper...

The Shift Operators There are 2 shift operators : left shift ( >). These are binary operators. The format is                 operand >> number or operand   The first

Define memory leak?, A: Memory that has no pointer pointing to it and there...

A: Memory that has no pointer pointing to it and there is no method to delete or reuse this memory(object), it causes Memory leak. { Base *b = new base(); } Out of this

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd