Method Overriding with Exceptions in Java

Understanding method overriding with Exceptions has made some confusions in my mind. So I tried to list all the possible cases in terms of declarations of exceptions in super class method. The list of 3 main cases are as follows.

Case 1: Super class method declares NO exceptions

Here there are only 2 possible sub cases.

1. Sub class method does not declare any Exceptions. This is the most obvious one since there are no Exceptions involved. So I'll omit the code sample.