How can I write a c++ program to count the number of objects created?

Answer 1

declare a static variable inside the class,
and upgrade its value inside the constructor definition,
you can access this variable using class name.

Edit:
example-
class A
{
static int count;
A() { count++; }

/*
*rest body of the class
*/

/* include count++ in every constructors, in case you have defined parameterized or copy constructors also */

};

main()
{
A obj1;
cout<< A::count; //output :- 1
A obj2;
cout<< A::count; // output :- 2
}

Answer 2

Thank you Nikhil Dhama best solution though

Answer 3

welcome ☺️

Answer 4

Tq Nikhil Dhama 😊👍🏻

#include<iostream>
using namespace std;
class A
{
public:
static int count;
public:
A()
{
count++;
}
};
int A::count;
int main()
{
A obj1,obj2,obj3,obj4;
cout<<"no of objects created= ";
cout<<A::count;
}

Answer 5

56667899

Answer 6

5 6 7 8 9 5 6