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

Recursive function, Binomial coefficients are the numeric factors of the pr...

Binomial coefficients are the numeric factors of the products in a power of a binomial such as (x + y)n. For example, (x + y)2 = x2 + 2 x y + y2 has the coefficients 1 2 1. Binomia

Define the double data type of c language, Define the Double Data Type of c...

Define the Double Data Type of c Language? The double is used to define BIG floating point numbers and it reserves twice the storage for the number. When the accuracy provided

Constructor , How can I handle a constructor that fails?

How can I handle a constructor that fails?

Constructors and destructors, Constructors and Destructors: A Class is ...

Constructors and Destructors: A Class is defined as constructor by declaring a constructor in the form of function inside the class.  In other word a function in the name of

Explain zero based addressing, Explain zero based addressing. - Array s...

Explain zero based addressing. - Array subscripts always start at zero. - These subscript values are used to identify elements in the array. - As subscripts start at 0, a

What is friend functions, Friend Functions One of the major features of...

Friend Functions One of the major features of OOP is information hiding. A class encapsulates data and methods to operate on that data in a single unit. The data from the class

C program to swap the two values, Program is to swap the two values which a...

Program is to swap the two values which are enter by user: Program is to swap the two values which are enter by user through the function with values changed using pointers

Define the data file in c programming, Define the Data File in C Programmin...

Define the Data File in C Programming? Many applications needs that information can written to or read from an auxiliary memory device. Such information is stock up on the memo

I want a craiglist poster required, Project Description: I want someone ...

Project Description: I want someone who can post ads for me on Craiglist . I will pay 3$ per ad i need about 30-40 ads per day . Skills required: C Programming, MySQL, Jav

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