12.13. Exception Propagation

Try these first

1. 1.

   What happens to an uncaught exception in a method?

   Hint

   Think about what a method does when it encounters an error.

2. 2.

   What keyword do we use to declare that a method can throw exceptions?

   Hint

   It's a keyword with a strong emphasis on mistakes!

3. 3.

   What occurs when an exception is not caught in the current method?

   • It crashes the program
   • It propagates to the calling method
   • It stops execution

   Hint

   Think about what the method does with errors.

4. 4.

   The throws keyword is used to declare?

   • True
   • False

   Hint

   Is it signaling a warning?

5. 5.

   Write a Java code snippet where a method throws an exception, and the calling method handles it. Describe what happens if the exception is not handled.

   Hint

   Look for the flow of the exception through the methods.

6. 6.

   Explain how you would design a system that requires exception propagation for a web application handling user inputs.

   Hint

   Think about how users interact with your application.