Write a program to calculate the volume of cube cylinder and rectangular box using the concept of function overloading?

Answer 1

The following code demonstrates function overloading to calculate volumes of cubes, cylinders and rectangular boxes (cuboids).

#include // required for input/output.

#include // required for atan() function.

using namespace std; // required for console input/output.

// User-input control function (avoids garbage input).

unsigned int GetNum( char * prompt )

{

int iResult = 0;

cout << prompt << ": ";

while( !( cin >> iResult ) iResult < 0 )

{

cin.clear();

cin.ignore( BUFSIZ, '\n' ); // If BUFSIZ not defined, use literal constant 512 instead.

cout << "Please enter numeric characters only." << endl << endl;

cout << prompt;

}

return( iResult );

}

// Forward declarations of overloaded functions.

void volume(unsigned int);

void volume(unsigned int,unsigned int);

void volume(unsigned int,unsigned int,unsigned int);

void volume(unsigned int s)

{

unsigned int cube = s*s*s;

cout << "Volume of cube is " << cube << endl << endl;

}

void volume( unsigned int r, unsigned int h)

{

// For the greatest accuracy across all platforms,

// PI is defined as 4 * arctan(1).

float cylinder = (4*atan((float)1)) * r*r*h;

cout<<"Volume of cylinder is " << cylinder << endl << endl;

}

void volume(unsigned int l, unsigned int b, unsigned int h)

{

unsigned int cuboid= l*b*h;

cout << "Volume of cuboid is " << cuboid << endl << endl;

}

int main()

{

unsigned int s;

s = GetNum( "Enter side of cube" );

volume( s );

unsigned int r, h;

r = GetNum( "Enter radius of cylinder" );

h = GetNum( "Enter height of cylinder" );

volume( r, h );

unsigned int l, b;

l = GetNum( "Enter length of cuboid" );

b = GetNum( "Enter breadth of cuboid" );

h = GetNum( "Enter height of cuboid" );

volume( l, b, h );

return 0;

}

OUTPUT:

Enter side of cube: 4

Volume of cube is 64

Enter radius of cylinder: 2

Enter height of cylinder: 3

Volume of cylinder is 37.6991

Enter length of cuboid: 9

Enter breadth of cuboid: 8

Enter height of cuboid: 6

Volume of cuboid is 432

Press any key to continue . . .

[EDIT] Reasons for changes to original answer:

1. Code does not compile.
2. Code strays from the question by including a non-essential class.
3. Code is not platform-independent.
4. Code does not cater for invalid input.

Answer 2

#include<iostream.h>

#include<conio.h>

float volume(float);

float volume(float,float);

float volume(float,float,float);

int main()

{

clrscr();

float loc,roc,hoc,le,br,ht;

cout<<"Enter the length of the cube\n\t";

cin>>loc;

cout<<"Enter the radius and the height of the cylinder\n";

cin>>roc>>hoc;

cout<<"Enter the length ,breadth and height of the rectangular box\n\t";

cin>>le>>br>>ht;

cout<<"\n\n The volume of cube is="<<volume(loc);

cout<<"\n The volume of cylinder is="<<volume(roc,hoc);

cout<<"\n The volume of Rectangle is="<<volume(le,br,ht);

getch();

return 0;

}

float volume(float s)

{

return(s*s*s);

}

float volume(float r,float h)

{

return(3.14*r*r*h);

}

float volume(float m,float n,float o)

{

return(m*n*o);

}