Boyarsky, Jeanne; Selikoff, Scott. OCP Oracle Certified Professional Java
SE 11 Developer Complete Study Guide (p. 420). Wiley. Kindle Edition.
In a subchapter: Applying a Multi-catch Block
Under this code:
Authors wrote this:
How can you reduce the duplicate code? One way is to have the related exception classes all inherit the same interface or extend the same class. For example, you can have a single catch block that just catches Exception. This will catch everything and anything.
I don't understand how would inheriting the same interface help here? I cannot use interface in the catch clause. If they extend the same exception, then they will be handled by the same block, I can understand that.
There is too much left untold and left to the user to ponder how one would solve it with interfaces...