For learning databases, the Notepad tutorial is a great one:
http://developer.android.com/intl/fr/resources/tutorials/notepad/index.html
.. There's probably also some code in the Samples section... Browse
around the Resources tab on the Developer site.

Here are the docs for the Application class:
http://developer.android.com/intl/fr/reference/android/app/Application.html
Once you're at the above link [for Application], you can easily search
or browse the docs for other classes.

For passing data around between Activities in the Intent bundle, check
out the docs for Activity [startActivity(), startActivityForResult()],
Intent [putExtra(), getExtra()]..

You will have to do your own research. I'm sorry I can't write code
for you--maybe someone else on the list has some time to do that...

There are loads of resources out there. Lots of great stuff provided
by Google and there are tons of great blogs and helpful message board
threads that you will uncover with some Googling.

Sorry I can't be of more help. I believe I have pushed you off in the
right direction...

-Nick





On Apr 6, 8:42 pm, nubh bhargava <nubh.bharg...@gmail.com> wrote:
> Thanks for the suggestion,
> but you have any code for it to explain and I need to store the phone
> numbers into this code so mailed twice.
>
> Thanks
> NUBH

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