Exception

[Hans]

Question:
I design an exception MyException is abstract subclass of Exception.
Exception
|
|_MyException(abstract class)
|
|_MyException1(not abstract class)

If I code a method Do().I think I can not throw MyException As
Do() throws MyException{}
If Do throw MyException1.I know I can delclare as
Do() throws MyException1{}
Whether I can declare as
Do() throws MyException{}.?Why?
Thank you.

[William Brogden]

Exceptions follow a hierarchy just like every other object.
Of course you can declare that a method throws the abstract parent of your custom class. Why didn't you just write a test case and compile it?
You can't declare that a method throws a checked exception and then have the method throw an exception that is the parent of what you declared. Try it and see.
Bill