Catching java exceptions FileNotFound and IOException at the same time

Question

Is the FileNotFoundException somehow a \"sub-exception\" of the IOException?

This is my code opening an input stream to a file at the given path:

Answer 1

Yes, as the javadoc shows it, FileNotFoundException is a subclass of IOException.

If you really wantFileNotFoundException, you must catch only this execption, otherwise catching IOException will also catch any exception subclassing it, like FileNotFoundException any many others.