posted 14 years ago
You understand what overriding is right? If not, overriding allows a subclass to re-define a method it inherits from it's superclass
* overriding methods:
* appear in subclasses
* have the same name as a superclass method
* have the same parameter list as a superclass method
* have the same return type as as a superclass method
* the access modifier for the overriding method may not be more restrictive than the access modifier of the superclass method
- if the superclass method is public, the overriding method must be public
- if the superclass method is protected, the overriding method may be protected or public
- if the superclass method is package, the overriding method may be packagage, protected, or public
- if the superclass methods is private, it is not inherited and overriding is not an issue
* the throws clause of the overriding method may only include exceptions that can be thrown by the superclass method, including it's subclasses
As for exceptions example:
K. Tsang CEng MBCS PMP PMI-ACP OCMJEA OCPJP