Question 1

What happens if characters 'w', 'o', 'r', 'l' and 'd' are entered as input? #include #include using namespace std; int main() { string s1 = "Hello"; string s2; getline( cin, s2 ); cout << s1 + s2; return( 0 ); }

Options :

A : It prints: Helloworld

B : It prints: Hello

C : It prints: world

D : Compilation error

Answer: A

Question 2

What happens when you attempt to compile and run the following code? #include using namespace std; class Test { float i,j; }; class Add { public: int x,y; Add (int a=3, int b=3) { x=a; y=b; } int result() { return x+y;} }; int main () { Test test; Add * padd; padd = &test; cout << padd?>result(); return 0; }

Options :

A : It prints: 6

B : It prints: 9

C : Compilation error

D : It prints: 33

Answer: C

Question 3

What will be the output of the program? #include using namespace std; int fun(int); int main() { cout << fun(5); return 0; } int fun(int i) { return i*i; }

Options :

A : 25

B : 5

C : 0

D : 1

Answer: A

Question 4

Which of the following expressions decrement variable i by 2? (Choose two.)

Options :

A :

i &= 0x03;

B :

i –= 2;

C :

––i; i––;

D : ––i––;

Answer: B,C

Question 5

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

Options :

A : It prints: T

B : It prints an empty line

C : It prints: Tesc

D : It prints: st

Answer: C

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