Aim: To implement a program to find area of rectangle, surface area of box and volume of box using virtual functions.

Code:                      

class rect

{

            double l,b;

            public:

                        virtual void getdata();

                        virtual void area();

};

void rect::getdata()

{

            cout<<"Enter the length and breadth of rectangle:\n";

            cin>>l>>b;

}

void rect::area()

{

            cout<<"Area of rectangle = "<

}

class box:public rect

{

            double l,b,h;

            public:

                        void getdata();

                        void area();

                        void volume();

};

void box::getdata()

{

            cout<<"\nEnter the length, breadth and height of the box:\n";

            cin>>l>>b>>h;

}

void box::area()

{

            cout<<"Surface area of the box = "<<2*(l*b+b*h+l*h)<<" sq. units\n";

}

void box::volume()

{

            cout<<"Volume of the box = "<

}

void main()

{

            rect r,*ptr;

            box b;

            clrscr();

            ptr=&r;

            ptr->getdata();

            ptr->area();

            ptr=&b;

            ptr->getdata();

            ptr->area();

            ((box *)ptr)->volume();

            getch();

}

 

Output:

Enter the length and breadth of rectangle:

10

15

Area of rectangle = 150 sq. units

 

Enter the length, breadth and height of the box:

5

12

6

Surface area of the box = 324 sq. units

Volume of the box = 360 cu. units

Posted Date: 9/29/2012 4:15:01 AM | Location : United States

Ask an Expert

Related Discussions:- C program to find area of rectangle, Assignment Help, Ask Question on C program to find area of rectangle, Get Answer, Expert's Help, C program to find area of rectangle Discussions

Write discussion on C program to find area of rectangle
Your posts are moderated

Write your message here..

Related Questions

Client-server architecture Project, I need a client-server architecture pro... I need a client-server architecture program for windows OS (minimum support: Win 7),. the agent program will run as a background process and perform certain tasks every X time, and

Decode the code, give the coding in c++ give the coding in c++

Program to find whether a number is odd or even, PROGRAM TO FIND WHETHER A ... PROGRAM TO FIND WHETHER A NUMBER IS ODD OR EVEN int main() { int number ; printf("Enter a whole number\n"); scanf("%d",&number); if(number % 2 == 0) printf("n

Define name mangling in c++??, A: The procedure of encoding the parameter t... A: The procedure of encoding the parameter types along with the function/method name into a unique name is called as name mangling. The inverse procedure is called demangling. F

Special symbols, What are the special symbols? What are the special symbols?

Tells the operators one can override; which operators , Q:  Tells the opera... Q:  Tells the operators one can override; which operators should he override? A: Bottom line: don't puzzle your users. Remember the reason of operator overloading: to decreas

Classes, decleration decleration

#task1, program for factorial program for factorial

Program that calculates bowling scores, Homework – Chapter 5 – Bowling Scor... Homework – Chapter 5 – Bowling Scores 33. Write a complete C++ program to do the following: The main program reads in and prints three bowling scores, score1, score2, and score

Develop g-code generating software, Develop G-code generating software P... Develop G-code generating software Project Description: I'm presently using Slicer on a polymer jetting 3d printer. The toolpaths were thought out for FDM printers and thus a