Easy Guide to Setup Java Development Kit on Windows

JDK configuration is mostly a one-time configuration for a machine until you get a new laptop or did a hard-format for the OS.

Not every engineer by heart remember these steps and keywords to setup the Environment Variables. Therefore, this will be a quick-guide for any one from an Intern to Senior Lead.

Set the following user environment variables (== environment variables of type user variables)

• JAVA_HOME : C:\Program Files\Java\jdk1.8.0_112
• JDK_HOME : %JAVA_HOME%
• JRE_HOME : %JAVA_HOME%\jre
• CLASSPATH : .;%JAVA_HOME%\lib;%JAVA_HOME%\jre\lib
• PATH : your-unique-entries;%JAVA_HOME%\bin (make sure that the longish your-unique-entries does not contain any other references to another Java installation folder.

Notice that these environment variables are derived from the “root” environment variable JAVA_HOME. This makes it easy to update your environment variables when updating the JDK. Just point JAVA_HOME to the fresh installation.

To Check if configurations are a success;

Open a command prompt, type :

java -version

javac -version

echo %JAVA_HOME%

I will draft blogpost explaining the rationale behind all these environment variables in next update.

Till then, TaDaaa!! Don't forget to Applaud on this post if it helped you in configuring.