How do I check my JDK version?

Java Version under Windows Start Menu – Java 7 Update 40 (7u40) and later versions

You must install Oracle JDK before installing Android Studio , so please don’t start this step until you have completed Step 1 above. Download Android Studio from the following address: Android Studio Download Page.

Change Android Studio project JDK

The JDK software is installed on your computer, for example, at C:\Program Files\Java\jdk1. 6.0_02 . You can move the JDK software to another location if desired.