What is the meaning of "unchecked exeptions are checked at runtime"?

Question

There is nothing like that! There is no difference between the two kinds of exceptions at runtime (besides their type). There is only checking at compiletime. The compiler checks that any checked exception that might occur in a method is either caught in the method body or declared in the method signature.

Answer 1

The question was a rhetorical one. Not so well placed in the Q&A Discussions ;-)