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

What are the benefits of learning C++?
Its a programming language helps to increase dicision making and logic reasoning power
Sunita
What is the actual size of INT in the C language, 2 or 4 bytes?
The actual size to int is determined by the compiler as the program runs. But theoretically the size is 2 bytes. You can increase the size by adding keyword long infront of it to make the size 4 bytes. Eg int a; // 2 bytes Long int b; // 4 bytes
Kunal
what do you mean scope resulation
According to me Scope resolution operator(::) is used to define a function outside a class or when we want to use a global variable but also has a local variable with same name.
Sunil
please tell me the best book for c programming language
LET US C by Yashwant Kanetkar. This book is very useful to improve the practical Knowledge. For Theory - Programming in C by Balagurusamy
Sunil
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

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

Ask a Question

Related Lessons

Working with C/C++ applications
Inorder to learn C and C++ programming languages one can work with various editors available.To name a few are the most popular one is turbo c++, DEV C++, Eclipse, NetBeans. Here are the screen shots...

PRACTISE makes you PERFECT ; ; ; There is no SUBSTITUTE for HARD WORK ;;;;Breathe SUCCESS like OXYGEN
Proper Planning ( reg what portions to be covered today) revising today's class portions & clarifying doubts solving Maths problems regularly ,noting down formulae separately trying to understand...

C++ Advanced Course Study With C++11 Features
OOPS(Object Oriented Programming Systems) In C++. Types of Languages 2GL(Basic,Instruction programming to microprocessors/MC), 3GL(COBOL(= EQUALS TO),C++,C,PASCAL,Java,C#) 4GL(HTML,CSS,JSON) Style...

What Are IT Industries Performance Metrics?
1. Outstanding Expectation: Eligible to get Promotion easily and good salary hike. Always preferrable to go abroad. 2. Exceed Expectation: Can get Promotion as per schedule of company with good salary...

What is Abstraction?
In theortical terms, abstraction is: Hiding details from the outer world. Providing only essential details to outer world. C++ provide ways to hide details using access specifiers: public, protected...

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