Android requires the Java Development Kit (JDK) version 7 (JDK 7) or 6 (JDK 6). We used JDK 7. To download the JDK for Windows, OS X or Linux, go to
You need only the JDK. Choose the 32-bit or 64-bit version based on your computer hardware and operating system. Most recent computers have 64-bit hardware—check your system’s specifications. If you have a 32-bit operating system, you must use the 32-bit JDK. Be sure to follow the installation instructions at