The simple example of CLASS in C++, To find the area of the rectangle:

The simple example of CLASS in C++, To find the area of the rectangle:

Program Code:

#include <iostream>
using namespace std;
class rect
{
    int a,b,c;
    public:
    void input()
    {
        cout<<"enter the value of a and b"<<"\n";
        cin>>a;
        cin>>b;
    }
    void area()
    {
        c=a*b;
        cout<<"area of rectangle is"<<"\n";
      cout<<c;
    }
    
};
int main() 
{
    rect obj;
    obj.input();
    obj.area();
}

The output of the program is tested on www.jdoodle.com

Output:

enter the value of a and b 5 7
area of rectangle is  35

Thanks

Mukesh Rajput