Android - Eclipse IDE

Download Eclipse IDE for Mobile Developer

Download Android Plugin for Eclipse
ADT - Android Development Tools
http://developer.android.com/sdk/installing/installing-adt.html

Start Eclipse, then select Help > Install New Software.

1. Click Add, in the top-right corner.
2. In the Add Repository dialog that appears, enter "ADT Plugin" for the Name and the following URL for the Location:

   https://dl-ssl.google.com/android/eclipse/