Recall from our discussions of exceptions Tuesday morning ...

UNCHECKED EXCEPTIONS.

The compiler does NOT check for these possible exceptions. You can compile code that may be logically buggy.

CHECKED EXCEPTIONS are different. Your source code is examined by the compiler for their very possibility -- checked by the compiler

The compiler won't let your code compile unless in the source code you either

• declare such exceptions to be thrown or
• use a try/catch on these exceptional conditions

java.io.FileNotFoundException is a CHECKED exception.