Java - where and how should exceptions be used?

Question

I was reading some things about exception handling in Java, to be able to write better code. OK, I admit, I am guilty; I\'ve used too much try-catch{} blocks, I\'ve used

Answer 1

Please, do not return null in case of non-fatal errors. Return a NullObject instead.

Otherwise you need a null check after each and every call to your code which is a pain, and if forgotten will cause the code to crash.