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- Question
How can we make a class abstract?
Options- A. By making all member functions constant.
- B. By making at least one member function as pure virtual function.
- C. By declaring it abstract using the static keyword.
- D. By declaring it abstract using the virtual keyword.
- Correct Answer
- By making at least one member function as pure virtual function.
- 1. Which of the following statements is correct about the constructors and destructors?
Options- A. Destructors can take arguments but constructors cannot.
- B. Constructors can take arguments but destructors cannot.
- C. Destructors can be overloaded but constructors cannot be overloaded.
- D. Constructors and destructors can both return a value. Discuss
- 2. Which of the following function / types of function cannot have default parameters?
Options- A. Member function of class
- B. main()
- C. Member function of structure
- D. Both B and C Discuss
- 3. Which of the following function prototype is perfectly acceptable?
Options- A. int Function(int Tmp = Show());
- B. float Function(int Tmp = Show(int, float));
- C. Both A and B.
- D. float = Show(int, float) Function(Tmp); Discuss
- 4. Where the default value of parameter have to be specified?
Options- A. Function call
- B. Function definition
- C. Function prototype
- D. Both B or C Discuss
- 5. Which of the following statement is correct?
Options- A. Overloaded functions can have at most one default argument.
- B. An overloaded function cannot have default argument.
- C. All arguments of an overloaded function can be default.
- D. A function if overloaded more than once cannot have default argument. Discuss
- 6. What does the class definitions in following code represent?
class Bike { Engine objEng; }; class Engine { float CC; };
Options- A. kind of relationship
- B. has a relationship
- C. Inheritance
- D. Both A and B Discuss
- 7. Which of the following statements about virtual base classes is correct?
Options- A. It is used to provide multiple inheritance.
- B. It is used to avoid multiple copies of base class in derived class.
- C. It is used to allow multiple copies of base class in a derived class.
- D. It allows private members of the base class to be inherited in the derived class. Discuss
- 8. Which of the following type of data member can be shared by all instances of its class?
Options- A. Public
- B. Inherited
- C. Static
- D. Friend Discuss
- 9. Which of the following statement is correct with respect to the use of friend keyword inside a class?
Options- A. A private data member can be declared as a friend.
- B. A class may be declared as a friend.
- C. An object may be declared as a friend.
- D. We can use friend keyword as a class name. Discuss
- 10. Which of the following statements are correct for a static member function?
- It can access only other static members of its class.
- It can be called using the class name, instead of objects.
Options- A. Only 1 is correct.
- B. Only 2 is correct.
- C. Both 1 and 2 are correct.
- D. Both 1 and 2 are incorrect. Discuss
Objects and Classes problems
Search Results
Correct Answer: Constructors can take arguments but destructors cannot.
Correct Answer: main()
Correct Answer: int Function(int Tmp = Show());
Correct Answer: Function prototype
Correct Answer: All arguments of an overloaded function can be default.
Correct Answer: has a relationship
Correct Answer: It is used to avoid multiple copies of base class in derived class.
Correct Answer: Static
Correct Answer: A class may be declared as a friend.
Correct Answer: Both 1 and 2 are correct.
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