UrbanPro

Learn C++ Language from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Search in

How do I achieve polymorphism in C++ using virtual functions?

Asked by Last Modified  

Follow 1
Answer

Please enter your answer

Experienced Computer trainer having worked in IT sector for 20 years.

The main use of virtual function is to achieve Runtime Polymorphism. Runtime polymorphism can be achieved only through a pointer (or reference) of base class type. Also, a base class pointer can point to the objects of base class as well as to the objects of derived class.
Comments

Step 1: Define the base class containing a virtual method. class Arithmetic { public: virtual void calc(); }; Step 2: Create the subclass. Also write the implementation of the virtual method. class Addition { public: void calc() { // logic of addition ...
read more

Step 1: Define the base class containing a virtual method.

class Arithmetic

{

public: 

         virtual void calc();

};

Step 2: Create the subclass. Also write the implementation of the virtual method.

class Addition

{

public: 

         void calc()

         {

               // logic of addition

          }

};

3) Creating pointer variable:,

void main()

{

    Arithmetic* obj1 = new Addition();

    obj1-> calc();

;

 

read less
Comments

Related Questions

How develop the logic of C++?­

 

 

Well there is no logic behind it. You learn by doing things.A Problem is nothing but a real life scenerio , So how will you solve a partiular problem in real life. You can apply that method to solve problem in programming.
Dipali
0 0
7
what is method over-riding and how it is used ? if possible send with code with output or screen photo ?
Method over-riding : it is a technique in which more then one function with same name and same signature( similar type parameter) can present in program. in overriding a subclass method overrides the definition...
Sayyad
0 0
5
What is the difference between class and structure?
Basic difference between class and structure is that Structures are used to store data and a class defined both data and the functions that access that data.
Aparna
0 0
8
i am a student of 11th class and i want to make my future in C++ is this possible i am take arts inn 11th class
Definitely.. but you should be flexible moving to java/ other languages as well.. requirement/ demand keep changing in software. i can do the needful.. with 18+ yrs exp in working on live projects...
Rajneesh
Are C Programmers currently in demand?
Ofcourse, C is alwasy in demand. In the beginning a lot of the big project developed in C language. Now a days, there are a lot of language in market and speciallity is growing in IT field. For a big organization...
Harsha

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Is It Fine To Write “void main()” Or “main()” In C/C++?
The definition: void main() { /* ... */ } Is not and never has been C++, nor has it even been C. See the ISO C++ standard 3.6.1 or the ISO C standard 5.1.2.2.1. A conforming...

Static and dynamic libraries
A library is a package of code that is meant to be reused by many programs. A static library (also known as an archive) consists of routines that are compiled and linked directly into your program. When...

Predict the Output of C Questions based on Recursion and Macro
#include<stdio.h>void k(unsigned int i,unsigned int j){ static char x="0123456789ABCDEF"; if(i>=j) k(i/j,j); putchar(x);}void main(){ k(20,12);} ___________________________________________ ...

Do You Know Size Of Empty Class and Reason?
Size of empty class is always 1 byte. Reason is, in order to differentiate one object to another object, the size of empty class is always 1 byte. See the below c++ code snippet. Here there are three...

Why Indexing Should Start From Zero In Array ?
Why numbering should start at zero? To denote the subsequence of natural numbers 2, 3, ..., 12 without the pernicious three dots, fourconventions are open to usa) 2 ≤ i < 13b) 1 < i ≤ 12c)...

Recommended Articles

Introduction C++ is an excellent programming language and many of the applications are written in C++ language. It has generic, object-oriented & imperative programming features, and also provides facilities for low-level memory manipulation. Successor of C language, it is an OOP (object oriented programming) language...

Read full article >

Software Development has been one of the most popular career trends since years. The reason behind this is the fact that software are being used almost everywhere today.  In all of our lives, from the morning’s alarm clock to the coffee maker, car, mobile phone, computer, ATM and in almost everything we use in our daily...

Read full article >

Hadoop is a framework which has been developed for organizing and analysing big chunks of data for a business. Suppose you have a file larger than your system’s storage capacity and you can’t store it. Hadoop helps in storing bigger files than what could be stored on one particular server. You can therefore store very,...

Read full article >

Applications engineering is a hot trend in the current IT market.  An applications engineer is responsible for designing and application of technology products relating to various aspects of computing. To accomplish this, he/she has to work collaboratively with the company’s manufacturing, marketing, sales, and customer...

Read full article >

Looking for C++ Language Classes?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you
X

Looking for C++ Language Classes?

The best tutors for C++ Language Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Learn C++ Language with the Best Tutors

The best Tutors for C++ Language Classes are on UrbanPro

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more