How to define a derived class, C/C++ Programming

Assignment Help:

How to define a derived class ?

A singly inherited derived class id defined by writing :

  • The keyword class.
  • The name of the derived class .
  • A single colon (:).
  • The type of derivation ( private , protected, or public ).
  • The name of the base, or parent class.
  • The remainder of the class definition.

e.g.

                class A

                 {

                  public :

                                                int public_A;

                                                void public_function_A();                           

  private :

                                                int pri_A;

                                                void private_function_A();

  protected :

                                                int protected_A;

                                                void protected_function_A();

 

  };

 

class B : private  A

 {

                  public :

                                                int public_B;

                                                void public_function_B();                            

       private :

                                                int pri_B;

                                                void private_function_B();

};

class C : public  A

 {

  public :

                                                int public_C;

                                                void public_function_C();                            

        private :

                                                int pri_C;

                                                void private_function_C();

 };

class D : protected A

 {

                  public :

                                                int public_D;

                                                void public_function_D();                                

                  private :

                                                int pri_D;

                                                void private_function_D();

                 };

A derived class always have all of the member members from its base class. You cannot "subtract" anything from a base class. Though, accessing the inherited variables is a dissimilar matter. It is also important to understand the privileges that the derived class has insofar as access to members of its base class are concerned. In other words, just because you happen to derive a class does not mean that you are automatically granted complete and unlimited access privileges to the members of the base class. to understand this you must look at the dissimilar types of derivation and the effect of each one.

 


Related Discussions:- How to define a derived class

Areaundercurve, 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 and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two points can b

Lexicographic permutation, Ask questioGiven an integer n and a permutation ...

Ask questioGiven an integer n and a permutation of numbers 1, 2 ... , n-1, n write a program to print the permutation that lexicographically precedes the given input permutation. I

I want packet capture analysis, I want Packet capture analysis Project D...

I want Packet capture analysis Project Description: Need assistance in debugging some packet capture Skills required is C Programming

Menus, create a shopping cart in c++

create a shopping cart in c++

Array-based Lists and Array-based Queues, Objectives: The objective of this...

Objectives: The objective of this assignment is to use C++ to queue students into an array-based queue for BCS registration. Students have the option of taking five different cours

Employee payroll, You are to write a C++ program which will compute the gro...

You are to write a C++ program which will compute the gross pay, Social Security Tax, Income Tax and net pay for an employee. The program needs to prompt for and read the employ

C prg, main() { int a[5]={1,3,6,7,0}; int *b; b=&a[2]; } The value of b[-1]...

main() { int a[5]={1,3,6,7,0}; int *b; b=&a[2]; } The value of b[-1] is

Program to add 2 distances & show sum as new distance, THIS PROGRAM IS TO A...

THIS PROGRAM IS TO ADD TWO DISTANCES & SHOW THEIR SUM AS NEW DISTANCE # include # include typedef int dist; struct distance   {   dist inch;   dist feet;   }; distance add

What if one forget the [] when deleteing array allocated , What if one forg...

What if one forget the [] when deleteing array allocated through new T[n]? A: All life comes to a disastrous end. It is the programmer's responsibility not the compiler's to

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