Well, where do you start, there are so many APIs, classes and methods
in J2SE (thousands - i.e. its a 'platform' not just a language; just
as Android is a 'platform' not a language). The comparisons aren't
always that direct but here's a few similarities I've thought about or
run up against that may be useful to you to get started in a direct
conversion, dependent of course on what you use in J2SE:

* An Android 'Activity' has methods such as onCreate(), onRestart(),
onResume(), onPause(), onStop() and onDestroy(), so it could be
compared with an Applet/JApplet at some level (and less favorably with
Frame/JFrame).
* An Android 'View' sits about where an awt 'Component' or a Swing
'JComponent' sits - they each have widgets/components built upon them.
* The interface 'implements OnClickListener' can often be used where
you had 'implements ActionListener' (and hence the 'onClick()' method
replaces 'actionPerformed()'  )
* Touch replaces the MouseListener.
* onDraw() is like paintComponent() - called when needed.
* ViewGroups are Layout Managers.
* The android.os.CountDownTimer functions somewhat like a
javax.swing.Timer
* etc, etc.

Good luck with your conversion,
Steve



On Oct 4, 9:15 pm, Jason <jason4...@paran.com> wrote:
> Hello.
>
> I'm trying to run J2SE JAVA Application on Android.
>
> As you know, the main problem is that J2SE classes such as awt,
> applet, and etc are not supported in Android.
> Consequently, this means that I should replace those many java classes
> with Android classes.
>
> So, Do you have some idea or information for replacing J2SE classes
> with Android classes?
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