Chapter 45

Question 1

Who closes the file

Answer 1

destructor

Question 2

What is the role of member initialization list in exception

Answer 2

Exception due to constructors of contained objects or constructor of a parent class can be caught in the member initialization list.

Question 3

What is role of destructor in exception

Answer 3

If destructor is called due to stack unwinding then exception should not leave destructor otherwise there will be abort

Question 4

What is abort

Answer 4

Program terminate abnormally

Question 5

What is throw list

Answer 5

list of exceptions

Question 6

What is function unexpected

Answer 6

If program throw an exception that is not in throw list then function unexpected in called. Which in turn call function terminate.

Question 7

What is concrete class

Answer 7

An abstract class meant to be used as the base class from which other classes are derived. The derived class is expected to provide implementation for the member functions that are not implemented in base class. A derived class that implement all the missing functionality is called a concrete class.