10.3.3. Exception Handling

Try these first

1. 1.

   What is an exception in programming?

   Hint

   Think about what can go wrong while running a program.

2. 2.

   Why do we need to catch exceptions?

   Hint

   Consider the user experience.

3. 3.

   What is the purpose of a try-catch block?

   • To create new objects
   • To handle exceptions
   • To eliminate errors

   Hint

   Consider how programs react when errors occur.

4. 4.

   True or False: An exception must always be handled in programming.

   • True
   • False

   Hint

   Think about how different programming languages manage exceptions.

5. 5.

   You’re developing an application for an online booking system. Implement exception handling for cases when bookings fail due to unavailability. Write the code and discuss your strategy.

   Hint

   Consider how users can be informed about the issue without losing the context.

6. 6.

   Compose a small program that demonstrates how exceptions provide context for debugging. Include various exceptions and their custom messages.

   Hint

   Think about how clarity in error messages aids in debugging.