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Question 1

What happens when you attempt to compile and run the following code? #include #include using namespace std; class A { public: int x; A() { x=0;} A(int x) { this?>x=x;} }; class B : private A { public: using A::x; B() { x=1;} B(int x) {this?>x = x;} }; int main () { B c1; B c2(?5); cout << c1.x; cout << c2.x; return 0; }

Options :

A : It prints: 5

B : It prints: 1?5

C : It prints: 05

D : It prints: 0

Answer: B

Question 2

What happens when you attempt to compile and run the following code? #include #include using namespace std; class A { protected: int y; public: int x, z; A() : x(1), y(2), z(0) {} A(int a, int b) : x(a), y(b) { z = x * y;} void Print() { cout << z; } }; class B : public A { public: int y; B() : A() {} B(int a, int b) : A(a,b) {} void Print() { cout << z; } }; int main () { A b(2,5); b.Print(); return 0; }

Options :

A : It prints: 10

B : It prints: 2

C : It prints: 5

D : It prints: 1

Answer: A

Question 3

What happens when you attempt to compile and run the following code?

Options :

A : It prints: 1

B : It causes a compilation error

C : It prints: 0

D : It prints: My exception,

Answer: B

Question 4

What will the variable "age" be in class B? class A { int x; protected: int y; public: int age; A () { age=5; }; }; class B : public A { string name; public: B () { name="Bob"; }; void Print() { cout << name << age; } };

Options :

A : public

B : private

C : protected

D : None of these

Answer: A

Question 5

Which code line inserted instead of the comment below will fix the program so that it produces the expected output and does not cause any memory leak?

Options :

A : delete [] p;

B : delete p[];

C : delete p;

D : delete *p;

Answer: A