How to Start with android application?

For Starting with android base application ..
check out the following link www.developer.android.com
Follow the steps you can set android in Netbeans or Eclipse ...
As per your choice.

How to add android in netbeans?
1. i have used netbeans so for adding it in netbeans choose option Tools->plugins.
2. In settings tab Click on add button.
3. Type Name: Android and
URL: http://kenai.com/downloads/nbandroid/updates.xml
4. Click on OK Button.
5. Now Open Available plugins .
6. Install Android from there.
7. Now Android plugin is Installed in netbeans.
Enjoy it .............