2. What will be the output of each of the following program when it is executed? (a) #include using namespace std; union abc { abc() { cout } }; int main() { } (b) abc obj; return 0; ...

2. What will be the output of each of the following program when it is executed? (a)

#include using namespace std; union abc

{

abc() {

cout <>

}

};

int main()

{

}

(b)

abc obj; return 0;

#include using namespace std; struct abc

{

abc() {

cout <>

}

};

int main()

{

}

(c)

abc obj; return 0;

#include using namespace std; struct abc

{

~abc() {

cout <>

}

};

int main()

{

}

(d)

abc obj; return 0;

#include using namespace std; struct abc

{

~abc() {

cout <>

}

};

int main()

{

}

(e)

abc obj; return 0;

#include using namespace std; struct abc

{

virtual ~abc() {

cout <>

}

};

int main()

{

}

(f)

abc obj; return 0;

#include using namespace std; struct abc

{

virtual abc() {

cout <>

}

};

int main()

{

}

(g)

abc obj; return 0;

#include using namespace std; struct abc {

abc();

};

abc :: abc()

{

struct sample {

sample() {

cout <>

}

};

}

int main()

{

}

(b)

abc obj; return 0;

#include using namespace std; struct abc {

abc();

};

abc :: abc()

{

struct sample {

sample();

};

}

abc::sample :: sample()

{

cout <>

}

int main()

{

abc obj; return 0;

}