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| From | Daniel Pitts <newsgroup.nospam@virtualinfinity.net> |
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| Subject | Re: [foo.bar.Frame] can not inherit from [java.awt.Frame] |
| References | <8d7bedc4-30a8-4dc4-97b6-9ddaafc2e16a@l4g2000vbt.googlegroups.com> |
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| NNTP-Posting-Date | Wed, 11 Apr 2012 18:18:32 UTC |
| Date | Wed, 11 Apr 2012 11:18:31 -0700 |
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| Xref | csiph.com comp.lang.java.programmer:13487 |
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On 4/11/12 4:56 AM, Maciej Labanowicz wrote:
> Hi,
>
> I'm trying to compile simple class, named Frame in package foo.bar:
>
> --[beg]--[Frame.java]-----------------------------------
> package foo.bar;
> import java.awt.Frame;
> public class Frame extends java.awt.Frame {
> public static final long serialVersionUID = 1L;
> public static void main(String [] args) {
> System.out.println("HELLO: args = " + args);
> }
> }
> --[eof]--[Frame.java]-----------------------------------
As others have pointed out, the problem is that you import Frame. you
don't need to import something if you use the fully qualified name.
A side note, extending Frame is probably not what you really want to do.
It is unfortunate that so many examples and tutorials have you do this,
but in reality, you just need to compose a Frame with the various
Components you need. For the most part, the only time you need to
extend *any* Component or JComponent is when you are creating a custom
view of a specific type of data. And then you should only extend
JComponent or Canvas as I understand it.
hth,
Daniel.
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[foo.bar.Frame] can not inherit from [java.awt.Frame] Maciej Labanowicz <m.labanowicz@gmail.com> - 2012-04-11 04:56 -0700
Re: can not inherit from [java.awt.Frame] Paul Cager <paul.cager@googlemail.com> - 2012-04-11 05:51 -0700
Re: can not inherit from [java.awt.Frame] Lew <noone@lewscanon.com> - 2012-04-11 08:13 -0700
Re: can not inherit from [java.awt.Frame] Paul Cager <paul.cager@googlemail.com> - 2012-04-11 09:37 -0700
Re: [foo.bar.Frame] can not inherit from [java.awt.Frame] Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2012-04-11 12:59 +0000
Re: [foo.bar.Frame] can not inherit from [java.awt.Frame] markspace <-@.> - 2012-04-11 08:24 -0700
Re: [foo.bar.Frame] can not inherit from [java.awt.Frame] Patricia Shanahan <pats@acm.org> - 2012-04-11 09:34 -0700
Re: [foo.bar.Frame] can not inherit from [java.awt.Frame] markspace <-@.> - 2012-04-11 10:01 -0700
Re: [foo.bar.Frame] can not inherit from [java.awt.Frame] Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-04-11 11:18 -0700
Re: [foo.bar.Frame] can not inherit from [java.awt.Frame] Lew <lewbloch@gmail.com> - 2012-04-11 12:18 -0700
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