About Question enthuware.ocpjp.v8.2.1273 :

[beaucarnes]

What am I missing in the code for this question? The answer says that it throws a java.lang.Exception but as far as I can tell the code never gets to that point because while opening the resource it throws IOException. So why isn't the answer IOException?

[admin]

There is no call to open. You should try running the code.

HTH,
Paul.

[dongyingname]

My question is not really related to the topic here:
I knew a try-block must be followed by a catch or a finally or both. But why the single try-block in the main method is successfully compiled?

[admin]

I knew a try-block must be followed by a catch or a finally or both. But why the single try-block in the main method is successfully compiled?

Because it is not a try block. It is a try-with-resources block.