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Exercise

Checked exception

Opposite of RuntimeException, all checked exceptions must have a try-catch block or the code will not compile, let alone run. In this exercise, you will see that you must add a try/catch around a checked exception, or else the application will not compile and will not run.

Instructions

100 XP
  • Run the sample code without any changes to see that the call to Class.forName() requires handling, leading to a compile error (error: compilation failed) if it is not handled.
  • Uncomment the try, catch, and message displayed in the catch block.
  • Now, try to run the application again and see that the application will compile and run because the checked exception has been handled.