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- Question
How many times a constructor is called in the life-time of an object?
Options- A. Only once
- B. Twice
- C. Thrice
- D. Depends on the way of creation of object
- Correct Answer
- Only once
- 1. Which of the following never requires any arguments?
Options- A. Member function
- B. Friend function
- C. Default constructor
- D. const function Discuss
- 2. Which of the following implicitly creates a default constructor when the programmer does not explicitly define at least one constructor for a class?
Options- A. Preprocessor
- B. Linker
- C. Loader
- D. Compiler Discuss
- 3. Which of the following statement is correct?
Options- A. Constructor has the same name as that of the class.
- B. Destructor has the same name as that of the class with a tilde symbol at the beginning.
- C. Both A and B.
- D. Destructor has the same name as the first member function of the class. Discuss
- 4. When are the Global objects destroyed?
Options- A. When the control comes out of the block in which they are being used.
- B. When the program terminates.
- C. When the control comes out of the function in which they are being used.
- D. As soon as local objects die. Discuss
- 5. If the programmer does not explicitly provide a destructor, then which of the following creates an empty destructor?
Options- A. Preprocessor
- B. Compiler
- C. Linker
- D. main() function Discuss
- 6. Which of the following statement is correct whenever an object goes out of scope?
Options- A. The default constructor of the object is called.
- B. The parameterized destructor is called.
- C. The default destructor of the object is called.
- D. None of the above. Discuss
- 7. Which of the following gets called when an object is being created?
Options- A. constructor
- B. virtual function
- C. destructor
- D. main Discuss
- 8. Which constructor function is designed to copy objects of the same class type?
Options- A. Create constructor
- B. Object constructor
- C. Dynamic constructor
- D. Copy constructor Discuss
- 9. Which of the following statement is incorrect?
Options- A. Default arguments can be provided for pointers to functions.
- B. A function can have all its arguments as default.
- C. Default argument cannot be provided for pointers to functions.
- D. A default argument cannot be redefined in later declaration. Discuss
- 10. Which of the following statement is correct?
Options- A. The default value for an argument cannot be function call.
- B. C++ allows the redefinition of a default parameter.
- C. Both A and B.
- D. C++ does not allow the redefinition of a default parameter. Discuss
Constructors and Destructors problems
Search Results
Correct Answer: Default constructor
Correct Answer: Compiler
Correct Answer: Both A and B.
Correct Answer: When the program terminates.
Correct Answer: Compiler
Correct Answer: The default destructor of the object is called.
Correct Answer: constructor
Correct Answer: Copy constructor
Correct Answer: Default argument cannot be provided for pointers to functions.
Correct Answer: C++ does not allow the redefinition of a default parameter.
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