Answer / supratim sengupta

Actually throwing your own exceptions is an excellent way
to handle various exceptions the way you want it to handle.
You can centralize the whole exception handling. It could
be useful in product development where you might miss out
some exception conditions and then you can always write a
common custom exception handler that can shoot you an email
with all the details of the exception.

Answer / guest

Not necessarily. If you're writing a library of code to be
used by other clients you don't always know the right thing
to do if an exceptional problem comes up. So it isn't always
a bad idea to throw your own exceptions.

Answer / guest

Well, if at that point you know that an error has occurred,
then why not write the proper code to handle that error
instead of passing a new Exception object to the catch
block? Throwing your own exceptions signifies some design
flaws in the project.

Answer / japan shha

Perhaps what you meant to ask was "When is it not necessarily a good idea to throw my own exception?"

http://stackoverflow.com/questions/2215112/why-is-it-a-bad-idea-to-throw-your-own-exceptions

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