Static Data Member

CODE:

#include<iostream>

using namespace std;

class item
 {
      static int count;
      int number;
      int a;
   public:
      void getdata()
      {
        cout<<"enter number to count: "<<endl;
        cin>>a;
          number=a;
          count++;
      }
      void getcount()
      {
          cout<<"count: "<<count<<endl;
      }
 };
 int item :: count;           //definition of static data member

 int main()
 {
    item a,b,c;             //count is initialized to zero
    a.getcount();           //display count
    b.getcount();
    c.getcount();

    a.getdata();         //getting data into object a
    b.getdata();         //getting data into object b
    c.getdata();         //getting data into object c

    cout<<"After reading data"<<endl;

    a.getcount();             //display count
    b.getcount();
    c.getcount();
    
    return 0;
 }



OUTPUT: