C program to find area of rectangle, C/C++ Programming

Assignment Help:

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


Related Discussions:- C program to find area of rectangle

Star, how can i print any english work using star .?

how can i print any english work using star .?

Memory allocation for objects, when a class is defined the compiler will no...

when a class is defined the compiler will not allocate memory. This is true only for data member not for member function.  As soon as the member function is defined  the require

Explain the bit wise operators, Explain the Bit Wise Operators? C langu...

Explain the Bit Wise Operators? C language has distinction of supporting special operators recognized as bit wise operators for manipulation of data at bit level. These operato

Minimum Shelf, At a shop of marbles, packs of marbles are prepared. Packets...

At a shop of marbles, packs of marbles are prepared. Packets are named A, B, C, D, E …….. All packets are kept in a VERTICAL SHELF in random order. Any numbers of packets with thes

D, drawbacks in assignments in engeenirng

drawbacks in assignments in engeenirng

My program, palindrome program with minimum character replacements

palindrome program with minimum character replacements

What are the precautions with function overloading, Precautions with functi...

Precautions with function overloading Function overloading is a boon to designers, since dissimilar names for same functions need not be thought of, which often is a cumbersome

Draw a circle in c program , Draw a circle in c program: void main() ...

Draw a circle in c program: void main() { clrscr(); int i,r=50,t,j,x,y; int gd,gm; gd =DETECT; initgraph(&gd,&gm,""); for(x=50;x for(y=50;y {   i

C CODING, HOW THE C PROGRAM CODING IMPLEMENTED DY ITSELF UNDERSTANDING . AL...

HOW THE C PROGRAM CODING IMPLEMENTED DY ITSELF UNDERSTANDING . ALSO HOW I CAN A BECOME A GOOD PROGRAMMER IN C WHAT I DO FOR GOOD PROGRAMMING ,TELL ME HOW C CODING DEVELOP DY ITSELF

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