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

Define memory alignment??, Primarily the term alignment refers the tendency...

Primarily the term alignment refers the tendency of an address pointer value to be a multiple of some power of two. Thus a pointer with two byte alignment contains a zero in the le

Require flowchart, I require a flowchart for push , & pop operation on stac...

I require a flowchart for push , & pop operation on stack using array

Program to create a query from database, Implement (a part of) electronic e...

Implement (a part of) electronic election Scenario where following political parties are participating in election: PPP, PML and PTI.  Create a class PollingStation where it stor

I want to change c++ code to python extension, I want to change C++ code to...

I want to change C++ code to Python extension Project Description: I have the C++ source code for an executable that takes a path to an image file as the input and prints tex

Develop activation tool for unattend reseal.xml, Project Description: We...

Project Description: We refurbish older computer and send them back into the market with windows 7 operating system. We are presently using windows deployment services through P

C program to define power of a function, C program to define power of a fun...

C program to define power of a function: Write a program to use power of a function. void main() { int x,y,po=1,i,j; clrscr();   printf("Give x,y\n"); sca

What is threaded binary tree, Threaded binary tree: Consider the linked il...

Threaded binary tree: Consider the linked illustration of a binary tree 'T.  Approximately half of the entries is the pointer fields 'LEFT' and 'RIGHT' will have null elements. Th

What are the two steps that happen while i say delete p?, A: N delete p is ...

A: N delete p is a two-step procedure: it calls the destructor, and then releases the memory. The code developed for delete p is functionally similar to this (supposing p is of typ

C program for bank account, Aim: To implement a program for bank account u...

Aim: To implement a program for bank account using static data type. Code: class bank {             static int acc_no;             int acc;             float b

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