C++ Static Variables and Functions | Find output programs | Set 5

This section contains the C++ find output programs with their explanations on C++ Static Variables and Functions (set 5).

Program 1:

#include <iostream>
#include <stdlib.h>
using namespace std;

class Sample {
    static int A;

public:
    Sample()
    {
        A++;
    }
    static void fun()
    {
        cout << A << endl;
    }
};
int Sample::A = 0;

int main()
{
    void (*F_PTR)();

    Sample S1, S2;

    F_PTR = Sample::fun;
    F_PTR();

    return 0;
}

Program 2:

#include <iostream>
#include <stdlib.h>
using namespace std;

class Sample {
public:
    static void fun1()
    {
        cout << "Hello ";
    }
    static void fun2()
    {
        cout << "Hiii ";
    }
};

int main()
{
    void (*F_PTR)();

    Sample S1, S2;

    F_PTR = Sample::fun1;
    F_PTR();

    F_PTR = Sample::fun2;
    F_PTR();

    return 0;
}

Program 3:

#include <iostream>
#include <stdlib.h>
using namespace std;

static class Sample {
public:
    static void fun1()
    {
        cout << "Hello ";
    }
    static void fun2()
    {
        cout << "Hiii ";
    }
};

int main()
{
    void (*F_PTR)();

    Sample S1, S2;

    F_PTR = Sample::fun1;
    F_PTR();

    F_PTR = Sample::fun2;
    F_PTR();

    return 0;
}