Question

create a class that includes a data member that holds a serial number for each object created from a class. that is the first object will be numbered 1 , the second 2 and so on. then each object is create , its constructor can examine this count member variable to determine thhe approprate serial number for the new object.
add a member function that permits an object to report its own serial number . then the main() program that creates three objects and queries each one about its serial number. they should respond i am object 2, and so on.

Answer 1

#include <iostream>
using namespace std;

class CounterClass {
private:
static int counter;
int number;

public:
CounterClass() {
number = ++counter;
};

void tell_number() {
cout << "I am object " << number << endl;
};
};


int CounterClass::counter = 0;

int main() {
CounterClass obj1;
CounterClass obj2;
CounterClass obj3;
obj1.tell_number();
obj2.tell_number();
obj3.tell_number();
cin.get();
}
</iostream>