Just to make it clear, that's an "Annotation" not a comment. Comments are ignored by the compiler, annotations are actually evaluated by the compiler in compile time and sometimes during runtime too.
http://download.oracle.com/javase/tutorial/java/javaOO/annotations.html from the documentation: Annotations have a number of uses, among them: > Information for the compiler — Annotations can be used by the compiler to > detect errors or suppress warnings. > Compiler-time and deployment-time processing — Software tools can process > annotation information to generate code, XML files, and so forth. > Runtime processing — Some annotations are available to be examined at > runtime. 2011/10/28 John Davis <davi...@gmail.com> > 2011/10/28 Francisco Dalla Rosa soares <soa...@argo.bz>: > > http://lmgtfy.com/?q=java+override > > I can't of nicer way to do this :) > > > > > > 2011/10/28 JBlaza <jbl...@gmail.com> > >> > >> I have looked on several other forums. i am new to the java programming > >> community, and i am looking for a clear understanding of the @overide > >> annotation, and what it does, or signifies. > >> > > The override part is a comment. It means that the routine exists > already in your class or parent(s) class and that you have decided to > do it differently from the already implemented code. > In other words, you have created a new class derived from an existing > class. The existing class or one of its parent classes has > implemented a function. You want to change the behaviour of > that funciton so you override it by creating the same function in your > class. > > Possibly I am not sure, but the keyword might also check your function > parameters and return class to ensure that > you are correctly matching the existing function as a check. Said > another way, there exists a class called Foo and you derive from it > with a class called MyFoo. Foo implements > a routine called void doIt(int a); You want to override it. In > eclipse, you type doI - and then ctrl-space and it auto-completes to > the function signature with empty brackets and the @override keyword. > Somewhere along the way, you change the funciton parameter to a float, > but you leave the @override keyword there. As far as the compiler > goes, this is legal, but with the override syntax there > the compiler will flag that the routine is not really overriden since > doIt() requires a int parameter and not a float. > > -- > John F. Davis > > 独树一帜 > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to android-developers@googlegroups.com > To unsubscribe from this group, send email to > android-developers+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > -- 株式会社アルゴ ARGO Inc. 〒130-0012 東京都墨田区太平3-11-10 NTKオオノビル8階 ソアレス フランシスコ ( Soares Francisco ) Mail : soa...@argo.bz HP : http://www.argo.bz/ TEL：03-5619-4511 FAX：03-5619-4512 -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
