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asin lin

Joined: Feb 18, 2004
Posts: 2
Hi Guys
Pleas tell me....
How to distinguish the practical urage between [OVERLOAD] and [OVERRIDE]?
And in what way can they be applied to?
thanks a lot
Chengwei Lee
Ranch Hand

Joined: Apr 02, 2004
Posts: 884
Think illustration by examples would be easier for you to understand:
Method overloading:

Method Overriding:

SCJP 1.4 * SCWCD 1.4 * SCBCD 1.3 * SCJA 1.0 * TOGAF 8
Joel McNary

Joined: Aug 20, 2001
Posts: 1824

Message overloading is having the same method name with different parameters:

method overriding happens when a subclass changes the behaviour of one of its superclasses by implementing the same method in a different way. For example:

This example shows that objects that are Mammals give birth to live young. However, Monotremata (which includes the platypus and the echidna), while they are mammals, lay eggs instead of giving birth to live young. Also, marsupials (kangaroos, opossums, koalas, etc.) give birth to live young but then put the young in a pouch.
An important difference to note is that overloaded methods are bound at compile-time, while overridden methods are determined at run-time.

Piscis Babelis est parvus, flavus, et hiridicus, et est probabiliter insolitissima raritas in toto mundo.
Anderson leeak

Joined: Apr 09, 2004
Posts: 4
OverLoading means there will not less than one same method,but these method can have
different arguments for every method.
OverRiding just happened when a subclass entends its superclass by implementing the
same method in a different way. But how the OverRiding is happened in the run-time which
can be called late-binding.but the OverLoading is bound at complie time.
I want to apologize for my poor english,because i came from english is not so good.
Dirk Schreckmann

Joined: Dec 10, 2001
Posts: 7023
thinkpad leeak,
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