Object Oriented Programming using c++ and Java Test - Set 23 - ObjectiveBooks

Object Oriented Programming using c++ and Java Test - Set 23

Practice Test: Question Set - 23


1. Which of the following assigns the number 5 to the area variable?
    (A) area 1 = 5
    (B) area = 5
    (C) area == 5
    (D) area --> 5

2. Which of the following is NOT included in the header of a function?
    (A) The type of variable returned by the function to the function that calls it
    (B) The name of the program or function that calls the function
    (C) The name of the function
    (D) The types and names of any variables that will be passed to the function

3. The switch variable can be of
    (A) int type only
    (B) char type only
    (C) Both int as well as char type
    (D) Float type only

4. Using the wardrobe structure within the ShopList structure is an example of a good programming principle, known as _______
    (A) Reusability
    (B) Polymorphism
    (C) Redundancy
    (D) Recursion

5. The major advantage of data hiding is that ________
    (A) Your programs can include more data
    (B) You no longer need functions
    (C) No one can ever use your data
    (D) Your data will be used correctly

6. When all of the operations in a function contribute to the performance of only one task, a function has
    (A) Singular cohesion
    (B) Tight cohesion
    (C) Functional cohesion
    (D) Sequential cohesion

7. A default catch block catches
    (A) All thrown objects
    (B) No thrown objects
    (C) Any thrown object that has not been caught by an earlier catch block
    (D) All thrown objects that have been caught by an earlier catch block

8. If a class object is thrown with a throw statement, then a subsequent catch block has a usable match if the type of the catch argument is_________
    (A) A parent class of the thrown class
    (B) A child class of the thrown class
    (C) Either (a) or (b)
    (D) Neither (a) nor (b)

9. Machine code is _______
    (A) Edited code
    (B) Source code
    (C) The 0s and 1s that the computer can understand
    (D) Both (b) and (c)

10. Which of the following are valid characters for a numeric literal constant?
    (A) A comma
    (B) A dollar sign ($)
    (C) A percent sign (%)
    (D) None of the above

11. Which of the following is the scope resolution operator?
    (A) ->>
    (B) ::
    (C) *
    (D) &

12. Which of the following statements creates and initializes a pointer named salesPtr?
    (A) salesPtr = NULL;
    (B) *salesPtr = "";
    (C) float &salesPtr = NULL;
    (D) float *salesPtr = NULL;

13. Which type of statement does not occur in computer programs?
    (A) Sequence
    (B) Loop
    (C) Denial
    (D) Selection

14. One way in which a structure differs from an array is that
    (A) A structure may have members of more than one type
    (B) A structure must have members that are all the same type
    (C) An array may have members of more than one type
    (D) There is no difference between a structure and an array

15. Inheritance is the principle that
    (A) Classes with the same name must be derived from one another
    (B) Knowledge of a general category can be applied to more specific objects
    (C) C++ functions may be used only if they have logical predecessors
    (D) One function name may invoke different methods

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