Inheritance problems
- 1. We can derive a class from a base class even if the base class's source code is not available.
Options- A. True
- B. False Discuss
Correct Answer: True
Explanation:
We can derive from a base class even if it is present in an assembly.
- 2. The way a derived class member function can access base class public members, the base class member functions can access public member functions of derived class.
Options- A. True
- B. False Discuss
Correct Answer: False
Explanation:
Base class cannot access derived class members since it does not have any knowledge of the derived class.
- 3. It is illegal to make objects of one class as members of another class.
Options- A. True
- B. False Discuss
Correct Answer: True
- 4. If a base class contains a member function func(), and a derived class does not contain a function with this name, an object of the derived class cannot access func().
Options- A. True
- B. False Discuss
Correct Answer: False
Explanation:
It depends upon how the function
func() has been defined in the base class. If the function
func() is defined public in base class then an object of the derived class can access the function
func().
- 5. There is no private or protected inheritance in C#.NET.
Options- A. True
- B. False Discuss
Correct Answer: True
- 6. Creating a derived class from a base class requires fundamental changes to the base class.
Options- A. True
- B. False Discuss
Correct Answer: False
- 7. A class D can be derived from a class C, which is derived from a class B, which is derived from a class A.
Options- A. True
- B. False Discuss
Correct Answer: True
Explanation:
This is known as multiple levels of inheritance.
- 8. An object of a derived class cannot access private members of base class.
Options- A. True
- B. False Discuss
Correct Answer: True
Explanation:
The private members of the base class are never accessible outside the class.
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