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

Wap to print any name on screen 10 times, WAP TO PRINT ANY NAME ON SCREEN 1...

WAP TO PRINT ANY NAME ON SCREEN 10 TIMES void main () { int a=1; clrscr(); do { printf ("expertsmind\n"); a++; } while (a getch (); }

Answer, Write a program to find the area under the curve y = f(x) between x...

Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b.

Example of switch case statement, #include #include #include void* m...

#include #include #include void* memorycopy (void *des, const void *src, size_t count) {   size_t n = (count + 7) / 8;   char* destination = (char *) des;   char* source =

Recursion, Solve the Nine Queens problem recursively. The objective is to p...

Solve the Nine Queens problem recursively. The objective is to place nine queens on an empty chessboard so that no queen is “attacking” any other, i.e., no two queens are in the sa

Introduction of c, Discuss the saleint featuresand application of c

Discuss the saleint featuresand application of c

Explain static member functions, Static Member Functions All the object...

Static Member Functions All the objects of the class share static data members of a class. The example above demonstrates how to keep track of all the objects of a class which

Ascii string related, A string S is said to be "Super ASCII", if it contain...

A string S is said to be "Super ASCII", if it contains the character frequency equal to their ascii values. String will contain only lower case alphabets (''a''-''z'') and the asci

KRPano, I am seeking an expert to create a 360 degree virtual tour in KRPan...

I am seeking an expert to create a 360 degree virtual tour in KRPano for use on PCs, tablets and smartphones. You will be given with panoramas in order to create an advanced KRPano

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