Why and how to set JAVA_HOME

Why to set JAVA_HOME?

Many applications like maven, elastic search etc., use JAVA_HOME property to find the location of the java they should use.

How to set JAVA_HOME?

Setting JAVA_HOME in windows

Right click on my computer -> properties.

Go to Advanced tab and click on ‘Environment Variables’ button.

In the System variables section, click on ‘New’ button.

Give the variable name as ‘JAVA_HOME’ and value to the location (For ex: C:\Program Files (x86)\Java\jdk1.8.0_102), where java is installed in your machine. Press Ok button.

That’s it you are done….:)

Setting JAVA_HOME in Linux Environment

Korn and bash shells:

export JAVA_HOME=jdk-install-dir

Bourne shell:

JAVA_HOME=jdk-install-dir

export JAVA_HOME

C shell:

setenv JAVA_HOME jdk-install-dir

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