why the System.Exception won't catch it??

For anyone who finds this in the future, I believe it is because TreeHouseDefense.OutOfBoundsException extends TreeHouseDefense.TreeHouseDefenseException, so this will catch before the more generic System.Exception.

Hey FEI,

It does, but if you're catching a more specific exception first and that specific exception is thrown, then that catch block will be executed.

If you're catching multiple exceptions, it's common for the last CATCH block to be a the base Exception class, so that all other exceptions are caught in that CATCH block.

So, the quiz says that a TreehouseDefense.OutOfBoundsException is thrown by DoSomething() in the code is below. Since the first catch block catches a TreehouseDefense.OutOfBoundsException and that is the exception that was thrown, then the code in that catch block will be executed.

If however, DoSomething() threw a IMadeThisUpException, then the last CATCH block would be executed, because the first two CATCH blocks do not catch IMadeThisUpException.

Does that help clarify?

    try
    {
        DoSomething();
    }
    catch(TreehouseDefense.OutOfBoundsException ex)
    {
    }
    catch(TreehouseDefense.TreehouseDefenseException ex)
    {
    }
    catch(System.Exception ex)
    {
    }

The quiz question doesn't look right on my screen, here is what it looks....
If DoSomething() throws TreehouseDefense.OutOfBoundsException, which catch clause will catch it? try { DoSomething(); } catch(TreehouseDefense.TreehouseDefenseException ex) { } catch(System.Exception ex) { }

Choose the correct answer below: Skip Quiz Review Video Get Help Next Question

A The exception won't be caught here.

B catch(TreehouseDefense.TreehouseDefenseException ex)

C catch(System.Exception ex)

Yes, thats what question3 said , I wish I can post the screenshot here, but I don't know how to do it...

Hmmm,I think there is a bug or something, I tried all three answers, and it says "catch(TreehouseDefense.TreehouseDefenseException ex)" is the right answer, I was very confused.....