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Groups > comp.lang.java.programmer > #34136
| Newsgroups | comp.lang.java.programmer |
|---|---|
| Date | 2016-04-15 04:59 -0700 |
| References | <7d6a2a1e-bf53-472c-8ec2-2c92a0b5f73e@googlegroups.com> |
| Message-ID | <bc7d7c11-2f50-4a0e-83dd-25df3d0fde4f@googlegroups.com> (permalink) |
| Subject | Re: Another question on Java keyword "this". |
| From | Eric Douglas <e.d.programmer@gmail.com> |
On Friday, April 15, 2016 at 2:27:34 AM UTC-4, cda...@gmail.com wrote:
> In the follow code found at...
>
> https://github.com/googlemaps/android-samples/blob/master/ApiDemos/app/src/main/java/com/example/mapdemo/GroundOverlayDemoActivity.java
>
> What does "this" in
>
> map.setOnGroundOverlayClickListener(this);
>
> refer to?
Same as any, it refers to the class, in this case an instance of GroundOverlayDemoActivity.
The only time the keyword this should be confusing is when you have an inner/anonymous class.
For example:
public class MyButton extends JButton {
public MyButton() {
addActionListener(new ActionListener() {
public void actionPerformed(final ActionEvent e) {
Object o = this;
}
});
}
}
In this case keyword this refers to an instance of an ActionListener, not a MyButton.
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Another question on Java keyword "this". cdalten@gmail.com - 2016-04-14 23:27 -0700
Re: Another question on Java keyword "this". Eric Douglas <e.d.programmer@gmail.com> - 2016-04-15 04:59 -0700
Re: Another question on Java keyword "this". cdalten@gmail.com - 2016-04-15 05:14 -0700
Re: Another question on Java keyword "this". cdalten@gmail.com - 2016-04-15 05:31 -0700
Re: Another question on Java keyword "this". Nigel Wade <nmw@ion.le.ac.uk> - 2016-04-15 14:05 +0100
Re: Another question on Java keyword "this". Eric Douglas <e.d.programmer@gmail.com> - 2016-04-15 06:25 -0700
Re: Another question on Java keyword "this". Lew <lewbloch@gmail.com> - 2016-04-15 14:48 -0700
Re: Another question on Java keyword "this". Brixomatic <brixomatic@yahoo.com> - 2016-04-23 15:01 +0200
Re: Another question on Java keyword "this". Roedy Green <inquiry@mindprod.com> - 2016-06-04 03:15 -0700
Re: Another question on Java keyword "this". Jukka Lahtinen <jtfjdehf@hotmail.com.invalid> - 2016-06-04 14:34 +0300
Re: Another question on Java keyword "this". Mike Amling <mamling@chaff.us> - 2016-06-04 14:07 -0500
Re: Another question on Java keyword "this". Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-04-15 08:24 -0400
Re: Another question on Java keyword "this". cdalten@gmail.com - 2016-04-15 14:45 -0700
Re: Another question on Java keyword "this". Lew <lewbloch@gmail.com> - 2016-04-15 14:52 -0700
Re: Another question on Java keyword "this". Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-04-15 18:26 -0400
Re: Another question on Java keyword "this". cdalten@gmail.com - 2016-04-17 19:13 -0700
Re: Another question on Java keyword "this". Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-04-18 07:37 -0400
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