C++ Developer - Exceptions and the Exception Hierarchy

The video tutorial introduces the concept of exceptions in C programming, explaining their role in making programs more robust and fault-tolerant. It covers the basics of exception classes and inheritance, using UML diagrams to illustrate class relationships. The tutorial also delves into the exception hierarchy in C, highlighting key classes like logic error and runtime error. A practical example demonstrates how to handle exceptions using try-catch blocks, emphasizing the importance of managing errors to prevent program crashes.

What is the primary purpose of exceptions in C?

• To increase memory usage

• To make programs run faster

• To enhance program robustness and fault tolerance

• To simplify code syntax

Which of the following is NOT a principle of object-oriented programming?

• Polymorphism

• Compilation

• Encapsulation

• Inheritance

In the context of inheritance, what does the term 'ISA relationship' refer to?

• A relationship where classes are unrelated

• A relationship where classes share the same methods

• A relationship where classes have identical attributes

• A relationship where one class is a type of another

Which class is the ancestor of most exception classes in C?

• RuntimeError

• BaseException

• Error

• Exception

What are the two popular direct children of the Exception class in C?

• SyntaxError and TypeError

• ValueError and KeyError

• MemoryError and IOError

• LogicError and RuntimeError

What is the purpose of a try-catch statement in C?

• To handle exceptions

• To declare variables

• To optimize code

• To define functions

In the provided code example, what causes the program to crash?

• Accessing an element out of bounds

• Using an undefined variable

• Incorrect syntax

• Infinite loop

What method is used in the catch block to print the error message?

• show()

• what()

• display()

• print()

Why is it more efficient to pass exceptions by constant reference in a catch block?

• It reduces memory usage

• It simplifies the code

• It allows for faster execution

• It prevents modification of the exception object

What are the two derived classes of the Exception class that were emphasized in the lecture?

• LogicError and RuntimeError

• TypeError and ValueError

• SyntaxError and MemoryError

• IOError and KeyError