# JDK setup

### JDK setup

Install Java devilment toolkit 1.8 (required, higher version Java may not work properly with Spark, we found out jdk1.8.0\_191 works well, therefore, recommend jdk1.8.0\_191. (Do NOT install JDK 9 or above, Spark is not currently compatible with JDK 9 or above.)

<https://www.oracle.com/technetwork/java/javase/downloads/java-archive-javase8-2177648.html>

JDK Windows (10) installation.

No blank space allowed in JDK folder name

Avoid install Java Development Kit into a folder which name contains space, such as c:\program files or c:\program files (x86). Best should be no space in folder name. If you installed JDK under c\\:program files or c\\:program files (x86), you will need to later in your Scala code set environment variable JAVA\_HOME to

C\\:Progra\~1\Java\jdk1.8.0\_191

If JDK is in C:\Program Files

C\\:Progra\~2\Java\jdk1.8.0\_191

If JDK is in C:\Program Files (X86)