Object Oriented Programming interview questions part 6
Object Oriented Programming interview questions part 6
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Total Questions: 20
1. If a base class is being derived by two other classes, which inheritance will that be called?
Correct Answer is : Hierarchical
2. Which among the following must be in a base class?
Correct Answer is : Nothing
3. Which type of members can’t be accessed in derived classes of a base class?
Correct Answer is : Private
4. If a class is enclosing more than one class, than it can be called as base class of those classes.
Correct Answer is : FALSE
5. Base class have ________________ of abstraction.
Correct Answer is : Lower degree
6. Always the base class constructors are called ___________ constructor of derived class.
Correct Answer is : Before
7. Can we call methods of base class using constructor of the derived class?
Correct Answer is : Yes, always
8. If a base class is inherited from another class and then one class derives it, which inheritance is shown?
Correct Answer is : Multi-level
9. How many base classes can a single derived class have in C++?
Correct Answer is : As many as required
10. If a base class is added with few new members, its subclass must also be modified. (True/False)
Correct Answer is : FALSE
11. Which among the following is true for class exceptions?
Correct Answer is : Both base class and derived class may produce exceptions
12. If both base and derived class caught exceptions ______________
Correct Answer is : Then catch block of derived class must be defined before base class
13. Which among the following is true?
Correct Answer is : If catch block of base class is written first, derived class catch block can’t be reached
14. The catching of base class exception ___________________________ in java.
Correct Answer is : Before derived class is not allowed by compiler
15. If catching of base class exception is done before derived class in C++ ________________
Correct Answer is : It may give warning but not error
16. How many catch blocks can a class have?
Correct Answer is : As many as required
17. Since which version of java is multiple exception catch was made possible?
Correct Answer is : Java 7
18. To catch more than one exception in one catch block, how are the exceptions separated in the syntax?
Correct Answer is : Vertical bar
19. If a catch block accepts more than one exceptions then __________________
Correct Answer is : The catch parameters are final
20. Which among the following handles the undefined class in program?
Correct Answer is : ClassNotFoundException
