Can I use throws in constructor?

Question

I have to initialize file objects inside the constructor and for handling the exception, is it efficient using throws or should I go for try/

Answer 1

To me, that's not a question of efficiency.

If you can react on the exceptional state and still create a valid or at least useable object, then handle it within the constructor.

Otherwise - in case the object is not usable - throw the exception back at the caller. In that case, he won't get an object and can't continue with an unusable/inconsistant instance which might produce errors in some other corners of the application.