Object Oriented Programming interview questions part 25
Object Oriented Programming interview questions part 25
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Total Questions: 20
1. All the operators can be overloaded using the member function operator overloading.
Correct Answer is : FALSE
2. Which operator among the following must be overloaded using the friend function?
Correct Answer is : Both << and >> operators
3. What does memory allocation for objects mean?
Correct Answer is : Actual creation and memory allocation for object members
4. Where is the memory allocated for the objects?
Correct Answer is : RAM
5. When is the memory allocated for an object?
Correct Answer is : When object constructor is called
6. Using new is type safe as _______________________
Correct Answer is : It doesn’t require to be specified with type of data
7. Which of the following function can be used for dynamic memory allocation of objects?
Correct Answer is : malloc() and calloc()
8. How much memory will be allocated for an object of class given below? class Test { int mark1; int mark2; float avg; char name[10]; };
Correct Answer is : 22 Bytes
9. Which keyword among the following can be used to declare an array of objects in java?
Correct Answer is : new
10. When is the memory allocated for an object gets free?
Correct Answer is : When object goes out of scope
11. Which among the following keyword can be used to free the allocated memory for an object?
Correct Answer is : either delete or free
12. Which function is called whenever an object goes out of scope?
Correct Answer is : Destructor function
13. Which operator can be used to check the size of an object?
Correct Answer is : sizeof(objectName)
14. The memory allocated for an object ____________________
Correct Answer is : Can be static or dynamic
15. If an object is declared in a user defined function __________________
Correct Answer is : Its memory is allocated in stack
16. In java, ____________________ takes care of managing memory for objects dynamically.
Correct Answer is : Garbage collector
17. Which operator can be used to free the memory allocated for an object in C++?
Correct Answer is : delete
18. Which among the following best defines multilevel inheritance?
Correct Answer is : Classes being derived from other derived classes
19. If there are 5 classes, E is derived from D, D from C, C from B and B from A. Which class constructor will be called first if the object of E or D is created?
Correct Answer is : A
20. If there are 3 classes. Class C is derived from class B and B is derived from A, Which class destructor will be called at last if object of C is destroyed.
Correct Answer is : A
