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

New customer, #questionhow can i add new customer and alot him a new unique...

#questionhow can i add new customer and alot him a new unique id ..

Explain multidimensional arrays, Multidimensional Arrays - Every dimens...

Multidimensional Arrays - Every dimension is specified in separate brackets e.g. int arr[4][3]; This is a two-dimensional array with 4 as row dimension and 3 as

Palindrome, A palindrome is a string that reads the same from both the ends...

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

Game, how to make a game

how to make a game

C and Data structure, Implement multiple stacks in a single dimensional arr...

Implement multiple stacks in a single dimensional array using c.

Algorithms, Ask question #Minimum 100 write an algorithm to calculate simpl...

Ask question #Minimum 100 write an algorithm to calculate simple interest and compound interestwords accepted#

Program for read a formal expression from standard input, Your program will...

Your program will read two kinds of data from two files: names and predicates. It will read a formal expression from standard input and check whether that expression is syntactical

Programs that perform the identical recursive algorithm, Goals For this ass...

Goals For this assignment you will write programs in C and LC-3 assembly code. Both programs will perform the identical recursive algorithm. The goals of this programming assignmen

Write program to get largest element in array using function, Write a progr...

Write a program to get the largest element in an array using Function? # include int largest(int b[],int); main() { int lar,a[5]={12,2,36,40,5}; lar=largest(a,n); printf("

Random card generator, i need a program that generates this output: The hig...

i need a program that generates this output: The highest card wins! Suit Order is: clubs, diamonds, hearts and spades The computers card is the 5 of Spades. The player’s card is t

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