Rules for throwing Exceptions when overriding methods.

1. If Parent throws no Exception:

• Child can throw Unchecked (RuntimeException).
• Child cannot throw Checked exceptions.

2. If Parent throws Checked Exception:

• Child can throw the same exception.
• Child can throw a subclass of the parent's exception.
• Child cannot throw a broader/different checked exception.
• Child can throw no exception at all.

Summary:

Overriding methods can never throw broader checked exceptions than the original method.