Explain nested classes, C/C++ Programming

Assignment Help:

Nested Classes

Many a times, it becomes essential to have a class contain properties of two other classes. One way is to explain a class within another - that is a class with member classes also known as nested classes. This has nothing to do with inheritance. Another way is multiple inheritance , which will be discussed later.

e.g.

                class Aclass

                 {

                  public :

                                                Aclass(int pv)

                                                 {

                                                                private_variable_A = pv;

                                                 }

  private :

                                                int private_variable_A;

                                  };

 

                class Bclass

                 {

                  public :

                                                Bclass(int bpv, int apv): Aobj(apv)

                                                 {

                                                                private_variable_B = bpv;

                                                 }

                  private :

                                                int private_variable_B;

                                                Aclass Aobj;        // Declaring an object here.

                  };

 

As can be seen , the class Bclass have an object Aobj in its private section as one of its members. Also, it have a constructor function with the similar name, to which the two variables passed are bpv and apv. The variable bpv is used to initialize the private variable of Bclass.

Though, the constructor contains something after the colon. The part after the colon in the definition of a constructor is known as initialization section and the actual body of the constructor is known as assignment section . Initialization section initializes the base class members, while assignment section contains statements to initialize the derived class members.

 


Related Discussions:- Explain nested classes

Assignmet, I have a assignment deadline is 11.11.2015 can I get help

I have a assignment deadline is 11.11.2015 can I get help

Write program.., # Dear I want help to programmer that write C++ code for...

# Dear I want help to programmer that write C++ code for my small project as soon as posible If we can help me?..

Program is to define a class as library, Program is to define a class as li...

Program is to define a class as library: Program is to define a class as library and perform all the function of library management by using classes and object class librar

Simplify the logical phrase with C++, hi i want wite a C++ program that get...

hi i want wite a C++ program that get one logical phrase (included {x,y,z,w,1,0}) and simplify it! but i ''m confused! thanxs for anubody help me...

Program of conversion from basic to user-defined variable, Conversion from ...

Conversion from Basic to User-Defined variable Consider the following example. class Distance                  {                   public  :

Luminous Jewels - The Polishing Game, Byteland county is very famous for lu...

Byteland county is very famous for luminous jewels. Luminous jewels are used in making beautiful necklaces. A necklace consists of various luminous jewels of particular colour. Nec

C program to create, Aim: To implement a program to create, update & displ...

Aim: To implement a program to create, update & display account & admin record of person using display account & admin records of person using virtual base class.. Code:

C program for function of find the factorial , C Program for FUNCTION OF FI...

C Program for FUNCTION OF FIND THE FACTORIAL float factorial(float); void main() {           float i=0,c=0;           clrscr();           printf("ENTER THE DIGI

Inheritance, example of program to ad two numbers

example of program to ad two numbers

A string S convert it to a palindrome by doing chara, A palindrome is a str...

A palindrome is a string that reads the same from both the ends. Given a string S convert it to a palindrome by doing character replacement. Your task is to convert S to palindrome

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