Android development.
Android software development is the process by which new applications are created for the Android operating system. Applications are usually developed in Java programming language using the Android (SDK), but other development environments are also available.
Official development tools
Android SDK
The Android software development kit (SDK) includes a comprehensive set of development tools. These include a debugger, libraries, a handset emulatorbased on QEMU, documentation, sample code, and tutorials. Currently supported development platforms include computers running Linux (any modern desktop Linux distribution), Mac OS X 10.5.8 or later, and Windows 7(previously XP) or later. As of March 2015, the SDK is not available on Android itself, but the software development is possible by using specialized Android applications.