Object Oriented Programming interview questions part 20
Object Oriented Programming interview questions part 20
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Total Questions: 20
1. How many types of inheritance should be used for hybrid ?
Correct Answer is : At east 2
2. If single inheritance is used with class A and B. A is base class. Then class C,D and E where C is base class and D is derived from C, then E is derived from D. Class C is made to inherit from class B. Which is the resultant type ?
Correct Answer is : Multilevel
3. If __________________ inheritance is done continuously, it is similar to tree structure.
Correct Answer is : Hierarchical
4. Which amongst the following is true for hybrid inheritance?
Correct Answer is : Constructor calls are usual
5. Which type of inheritance must be used so that the resultant is hybrid?
Correct Answer is : None
6. The private member’s are made public to all the classes in inheritance.
Correct Answer is : FALSE
7. If hierarchical inheritance requires to inherit more than one class to single class, which syntax is correct? ( A,B,C are class names )
Correct Answer is : class A: public B, public C
8. What is the maximum number of classes allowed in hybrid inheritance?
Correct Answer is : As many as required
9. What is the minimum number of classes to be there in a program implementing hybrid inheritance?
Correct Answer is : No limit
10. If object of lowest level class is created ( last derived class ), _________________ of its parent class constructors are called.
Correct Answer is : Only parent and parent
11. If hybrid inheritance is used, it mostly shows _______________ feature of OOP.
Correct Answer is : Reusability
12. The sequence of destructors being called while using hybrid inheritance is ____________
Correct Answer is : Reverse of constructors being called
13. Overloading operators are possible only by using hybrid inheritance.
Correct Answer is : FALSE
14. What are inbuilt classes?
Correct Answer is : The predefined classes in a language
15. Inbuilt class __________________________
Correct Answer is : Must be included before use
16. What doesn’t inbuilt classes contain?
Correct Answer is : Function definitions
17. Which among the following not an inbuilt class in C++?
Correct Answer is : Functions
18. What is InputStream class meant for?
Correct Answer is : To handle all input streams
19. Which statement is true for Array class?
Correct Answer is : Each class has an associated Array class
20. What is the use of Math class?
Correct Answer is : To use the mathematical functions
