When to choose checked and unchecked exceptions

Question

In Java (or any other language with checked exceptions), when creating your own exception class, how do you decide whether it should be checked or unchecked?

My inst

Answer 1

Checked exceptions are useful for recoverable cases where you want to provide information to the caller (i.e. insufficient permissions, file not found, etc).

Unchecked exceptions are used rarely, if at all, for informing the user or programmer of serious errors or unexpected conditions during run-time. Don't throw them if you're writing code or libraries that will be used by others, as they may not be expecting your software to throw unchecked exceptions since the compiler doesn't force them to be caught or declared.