In this post we'll try to build an android development environment for windows. 

What we need?

1) Java Development Kit (Jdk) download

2) Android SDK download

3) Eclipse SDK download

After we installed programs we need to add new software on Eclipse. To do this goto Help -> Install New Software 

Later click on Add button and enter "https://dl-ssl.google.com/android/eclipse/" link in address part and click Ok.

In step 2 choose packets (all packets) and click Next. In next window you can see packets install stats. If you didnt install Android SDK, before get this step you should install it. 

Android SDK Location options:

Go to Window -> Preferences and click "Android" on left side and define Android SDK location that you installed, click ok and close window.

Android SDK and AVD Manager Options:

Go to Window -> Android SDK and AVD Manager option. When we clicked some operations will be performed and after on left side you will see packages that you can install.

If you are planning develop many kind of projetcs on Android you can select all packages but i dont advice that. You can install basic packages of android and start developing with them.

AVD Manager:

You need to create a virtual device to run applications you developed. You can add new virtual devices on Window -> AVD Manager section. If you have a smart phone has Android operating system you can test your apps. with it too. (This is better and more efficient)