12. Exception Handling

Try these first

1. 1.

   What is an exception?

   Hint

   Think about what happens when there's an error.

2. 2.

   Mention one example of a checked exception.

   Hint

   It's related to handling files.

3. 3.

   What mechanism allows you to handle errors in Java?

   • try-catch
   • do-while
   • for-each

   Hint

   Remember the keywords related to error handling.

4. 4.

   True or False: Checked exceptions are ignored at compile time.

   • True
   • False

   Hint

   Consider what checked exceptions require from the programmer.

5. 5.

   Write a Java program that demonstrates the use of checked and unchecked exceptions, handling each properly.

   Hint

   Focus on creating methods that throw both types and demonstrate proper handling.

6. 6.

   Create a custom exception class named AgeTooLowException and demonstrate how to throw this exception in a method.

   Hint

   Think about how to extend Exception and provide an appropriate message.