What is virtual class and friend class, C/C++ Programming

Assignment Help:

Friend classes are used when two or more classes are designed to work together and require access to each other's execution in ways that the rest of the world shouldn't be permitted to have. In other words, they help keep private things private. For instance, it may be desirable for class DatabaseCursor to have more privilege to the internals of class Database than main() has.

Related Discussions:- What is virtual class and friend class

Padovan string ., #questio#A Padovan string P(n) for a natural number n is ...

#questio#A Padovan string P(n) for a natural number n is defined as: P(0) = ‘X’ P(1) = ‘Y’ P(2) = ‘Z’ P(n) = P(n-2) + P(n-3), n>2 where + denotes string concate

Area under curve, progarm in c for area under curve #include ...

progarm in c for area under curve #include float start_point, /* GLOBAL VARIABLES */ end_point, total_area; int numtraps;

Wap to calculate total marks and percentage of 3 subjects, WAP TO ACCEPT MA...

WAP TO ACCEPT MARKS OF THREE SUBJECT FOR STUDENT & CALCULATE TOTAL MARKS AND PERCENTAGE #include stdio.h> #include conio.h> void main() { int M1,M

#titlethe Average Temperature in Paradise.., Writing and compiling a progra...

Writing and compiling a program from a given Use Case definition. Follow the Average Temperature in Paradise

Define external storage class - computer programming, Define External Stora...

Define External Storage Class - computer programming? When a variable is declared outside a function the storage is permanently assigned to it and its storage class is 'extern'

Stone game, how to write a c program for stone game

how to write a c program for stone game

Introduction of computer and programming concept, Classify computer system ...

Classify computer system according to capacity. How they are different from computers according to the classification of technology. Provide comparative study also.

Bulk listing posting for a site like ebay, Project Description: I posted...

Project Description: I posted listings on a site that is like eBay but for video games. I post the similar listing many times daily, but need something that will let me post

Load catalogue from file, Implement a menu driven real estate catalogue sys...

Implement a menu driven real estate catalogue system that allows users to perform various catalogue maintenance and search tasks. You are only allowed to use the C programming la

How to write a global inline function, How to write a global inline functio...

How to write a global inline function First, let's get away from member functions for a moment and consider a global function. To make a request that this function be in line:

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages