Describe three ways in which a language may allow programmers to declare exceptions. Explain why it is useful to define exceptions as classes in C++, Java, and C#. Explain the behavior and purpose of...

Describe three ways in which a language may allow programmers to declare exceptions. Explain why it is useful to define exceptions as classes in C++, Java, and C#. Explain the behavior and purpose of a try... finally construct. Describe the algorithm used to identify an appropriate handler when an exception is raised in a language like Ada or C++.