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The advantage of declaring a virtual function as pure is
?

  • programs runs faster
  • early binding can be achieved
  • you force any derived class to define its own implementation
  • you can avoid making the class an abstract class
Similar Questions :

1. A variable is defined within a block in a body of a function. Which of the following are true ?

  • It is visible from the point of definition to the end of the program.
  • It is visible throughout the function.
  • It is visible from the point of definition to the end of the block.
  • It is visible throughout the block.

2. Size of a char is ?

  • 1
  • 2
  • 3
  • 4

3. The members of a class are ?

b) by default are private
c) are made private by declaring as private
d) none of the above]

  • have no visibility by default
  • public by default
  • private by default
  • protected by default

4. What is purpose of abstract class ?

  • to provide help with database connectivity.
  • to provide data input to other classes.
  • to provide security to other classes.
  • to provide an appropriate base class from which other classes can inherit.

5. The objects can directly access ?

  • Public members
  • Private members
  • Both of above
  • None of above
Read more from - C++ Programming Questions Answers - Set 2
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