Hi gianni,
Gianni:I studied that it's not usual to throw errors, so I think this question is a bit misleading. Am I right?
1.There is no need to bother about Errors or RuntimeExceptions.
1.1 Parents and Child methods can optionally declare RuntimeExceptions or Errors of their own.
2.Coming to checked-exceptions:
1.1 If parent methd has one, then
1.1.1 Child method may or may not throw that exeption
1.1.2 Child method should not declare any additional exceptions.
Hope it helps you avoid ambiguity.
[ April 02, 2007: Message edited by: Srinivasan thoyyeti ]