Write A C++ Program To Implement Class Rectangle.

#include <iostream.h> 
 #include<conio.h> 
 class Rectangle 
 { 
                int x, y; 
    public: 
                void set_values (int,int); 
             int area (void) 
        { 
             return (x*y); 
        } 
 }; 
           void Rectangle::set_values (int a, int b) 
        { 
                x=a; 
                y= b; 
        } 
             void main () 
 { 
    clrscr(); 
    Rectangle rect; 
    rect.set_values (3,4); 
    cout << "Area is : " << rect.area(); 
    getch(); 
 } 
 Output : 
 Area is : 12