Write a C++ program to implement a circle class. Each Object of this class will represent a circle, storing its radius and the x and y coordinate of its center as floats. Include two access functions for: (a) Calculate area of circle , (b) calculating the circumference of circle.

#include<iostream.h>

#include<conio.h>

// start class

class circle

{

private :

float radius;

float x , y;

public :

void get_radius(float r)

{ radius = r; }

void get_xycoor(float a, float b)

{ x = a;

y = b;

}

void area( )

{

cout<< "\n\n The area of the circle of radius "<< radius <<" is " << 3.14 * radius * radius ;

}

void circum()

{

cout<< "\n\n The circumference of the circle of radius "<< radius <<" is " << 2 *3.14 * radius ;

}

};

//End of class

void main()

{

circle c1;

float rad;

cout<< "\n Enter radius :";

cin >> rad;

c1.get_radius(rad);

c1.area();

c1.circum();

getch();

}

Write a program to accomplish the following functions specified below.

handle( a-character) returns the reversed case of the passed character or prints it twice depending upon whether you assign the return value to it or not.

#include<iostream.h>

#include<conio.h>

void handle(char ch)

{

cout<< ch << " " << ch;

}

int handle(int ch)

{

if(ch > = 65 && ch < = 90) // ASCII CODE of A = 65,Z=90

  ch =ch + 32;

else

   { if(ch > = 97 && ch < = 122) // ASCII code of a=97,z=122

           ch = ch - 32;

    }

return ch;

}

     

void main()

{

cout<< "\n Enter a character :";

char c;

cin >> c;

// To print the character twice

handle(c);

cout<<"\n\n" ;

// To reverse the character

int a = handle(c);

cout<< "\n The reverse character of " < < c << "is " << (char)a;

getch();

}