There are many ways to set up a Android mobile development environment.

1) Android Studio(based on IntelliJ IDEA IDE)

http://developer.android.com/sdk/installing/studio.html

This is the easiest way to start an Android dev env as a beginner. Please just download:

For window,

 android-studio-bundle-<version>.exe

For Mac,

android-studio-bundle-<version>.dmg

For Linux,

android-studio-bundle-<version>.tgz

1. Unpack the downloaded Tar file
2. To launch Android Studio, navigate to the android-studio/bin/ directory in a terminal and execute studio.sh. [Ref: http://developer.android.com/sdk/installing/studio.html]

2) Android Developer Tools (ADT Bundle – Eclipse with the ADT Plugin)

http://developer.android.com/sdk/index.html

Please just download respective .zip file for selected OS.

3) Eclipse (IDE) + Android SDK

You need to install Eclipse IDE. Assume that you have already install JAVA SDK (http://www.oracle.com/technetwork/java/javase/downloads/index.html).

You need to download Android SDK from “SDK Tools Only” sections of http://developer.android.com/sdk/index.html.

When you set up Eclipse for android development, you need to link Eclipse with respective JAVA SDK and android SDK manually.

4) IntelliJ (IDE) + Android SDK

Download IntelliJ IDE from this link: http://www.jetbrains.com/idea/

You are assumed that you’ve already installed JAVA SDK.

Download Android SDK from “SDK Tools Only” section of http://developer.android.com/sdk/index.html

When you set up IntelliJ for android development, you need to link IntelliJ with respective JAVA SDK and android SDK manually.

Enjoy!!!