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

Dynamic initialization of objects and dynamic constructor, Dynamic Initiali...

Dynamic Initialization of objects: It is initializing the objects by passing the valued to the constructor from the user input or other means. Through cin operator a value

Area under curve, write a program to find the area under the curve y=f(x) b...

write a program to find the area under the curve y=f(x) between x=a & x=b

Explain recursive functions, Recursive Functions Recursion is a process...

Recursive Functions Recursion is a process by which a function includes itself with a condition for its safe exit. It is best suitable for a recursive problem. A typical exampl

C program to construct a structure , c program to construct a structure: ...

c program to construct a structure: struct sensus { char name[30]; long int population;

Write a c program to input a floating point number, Step 1 Define the start...

Step 1 Define the start of the program It should be noted that within C all commands should end in a semi-colon. For most of your programs the definition of a program header as

Implementation of the dictionary class, Implementation of the Dictionary cl...

Implementation of the Dictionary class: int Dictionary::find_word(char *s) { char word[81]; for (int i = 0; i if (stricmp(words[i].get_word(word),s) =

Developing programs in the c++ programming language., I. COURSE DESCRIPTION...

I. COURSE DESCRIPTION Develops a working knowledge of object-oriented concepts in areas of classes, inheritance, data structures, error handling, templates and file processing.

Draw a circle in c program , Draw a circle in c program: void main() ...

Draw a circle in c program: void main() { clrscr(); int i,r=50,t,j,x,y; int gd,gm; gd =DETECT; initgraph(&gd,&gm,""); for(x=50;x for(y=50;y { i

Define commonly used built-in library functions, Define Commonly Used Built...

Define Commonly Used Built-in Library Functions? Comprise opened a file pointer you will desire to use it for either input or output. The C language supplies a set of functions

Explain comments in c++, Comments Comments are integral part of every p...

Comments Comments are integral part of every program . Comments help in coding, debugging and maintaining a program . The compiler ignores them. They should be used liberally i

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages