Slip 8 - A) Write a C++ program to create a class Number, which contain static data member ‘cnt’ and member function ‘Display()’. Display() should print number of times display operation is performed irrespective of the object responsible for calling Display() .

 Solution:

#include <iostream>

using namespace std;

class Number{

    public:

        void display(){

            static int cnt=1;

            cout<<"\nDisplay function is called "<<cnt<<" times"<<endl;

            cnt++;

        }

};

int main()

{

    Number n1,n2;

    n1.display();

    n1.display();

    n2.display();

    n2.display();

    return 0;

}