C++ | Static Keyword | Question 4

Predict the output of following C++ program.

CPP

#include <iostream>
using namespace std;

class A
{
private:
    int x;
public:
    A(int _x)  {  x = _x; }
    int get()  { return x; }
};

class B
{
    static A a;
public:
   static int get()
   {  return a.get(); }
};

int main(void)
{
    B b;
    cout << b.get();
    return 0;
}

(A)

(B)

Linker Error: Undefined reference B::a

(C)

Linker Error: Cannot access static a

(D)

Linker Error: multiple functions with same name get()

Answer

Please comment below if you find anything wrong in the above post
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