16. Which operator is used to declare the destructor?

1. 1. $

   
   
   

   2. @

   
   
   

   3. ~

   
   
   

   4. #

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   ~

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17. Which constructor will initialize the base class data member?

1. 1. class

   
   
   

   2. derived class

   
   
   

   3. base class

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   Because it is having the proper data set to initialize, Otherwise it will throw a error.

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18. Which class is used to design the base class?

1. 1. base class

   
   
   

   2. derived class

   
   
   

   3. abstract class

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   abstract class

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19. Which is used to create a pure virtual function ?

1. 1. !

   
   
   

   2. &

   
   
   

   3. $

   
   
   

   4. =0

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   For making a method as pure virtual function, We have to append ‘=0’ to the class or method.

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20. Which is also called as abstract class?

1. 1. derived class

   
   
   

   2. virtual function

   
   
   

   3. pure virtual function

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   Classes that contain at least one pure virtual function are called as abstract base classes.

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