C++ programming language

11. Declaration of a pointer reserves memory space

1. for the object.
2. for the pointer.
3. both for the object and the pointer.
4. none of these.

View answer

12. Exception handling is targeted at

1. Run-time error
2. Compile time error
3. Logical error
4. All of the above.

View answer

13. for (; ;)

1. means the test which is done using some expression is always true
2. is not valid
3. will loop forever
4. should be written as for( )

View answer

14. Given a class named Book, which of the following is not a valid constructor?

1. Book ( ) { }
2. Book ( Book b) { }
3. Book ( Book & b) { }
4. Book (char* author, char* title) { }

View answer

15. Identify the operator that is NOT used with pointers

1. ->
2. &
3. *
4. >>

View answer

16. If a class C is derived from class B, which is derived from class A, all through public inheritance, then a class C member function can access

1. protected and public data only in C and B.
2. protected and public data only in C.
3. private data in A and B.
4. protected data in A and B.

View answer

17. If an array is declared as int a[4] = {3, 0, 1, 2}, then values assigned to a[0] & a[4] will be _________

1. 3, 2
2. 0, 2
3. 3, 0
4. 0, 4

View answer

18. If the variable count exceeds 100, a single statement that prints 'Too many' is

1. if (count<100) cout << 'Too many';
2. if (count>100) cout >> 'Too many';
3. if (count>100) cout << 'Too many';
4. None of these.

View answer

19. If we create a file by ,ifstream', then the default mode of the file is _________

1. ios :: out
2. ios :: in
3. ios :: app
4. ios :: binary

View answer

20. If x = 5, y = 2 then x ^ y equals_________. (where ^ is a bitwise XOR operator)

1. 111
2. 10000010
3. 10100000
4. 11001000

View answer