No JDK found. Please validate either STUDIO_JDK, JDK_HOME or JAVA_HOME environment variable points

No JDK found. Please validate either STUDIO_JDK, JDK_HOME or JAVA_HOME environment variable points to valid JDK installation.

http://stackoverflow.com/questions/16629846/an-issue-with-android-studio-running-on-linux

chmod 777 android-studio