Can anyone please explain me this Code!!

Question

#include <iostream>

using namespace std;

class A{
static int b;int c=0;
public:
void show()
{
cout<<++b<<++c;
}
};
int A::b;
int main()
{
A x,y;
x.show();
y.show();
return 0;
}
//Output 1121

Answer 1

STATIC variables are automatically initialized to 0.

Answer 2

The static variable "b" is shared among the objects of the class A. But the "c" isn't.
So if you change the "b", it is reflected in other onjects.

Answer 3

"static int b;"?
This is a declaration. The instance is
"int A::b;". So if there isn't the instance, link error will happen.

Answer 4

hey Programanta ludanto
we didnt initialise b=0 even it is printing the value as if it is initialised to 0.
and what does int A::b; states? i didnt understood this line..

Answer 5

what does that line does?