Configure Java_Home on Linux

• Login to your account and open the startup script file which is usually ~/.bash_profile  file (or can be .bashrc depending on your envrionment settings)

$ vi ~/.bash_profile

In the startup script, set JAVA_HOME  and PATH

C shell:

setenv JAVA_HOME jdk-install-dir
setenv PATH $JAVA_HOME/bin:$PATH
export PATH=$JAVA_HOME/bin:$PATH

jdk-install-dir  is the JDK installation director, which should be something similar to /usr/java/jdk1.8.0_45/bin/java

Bourne shell:

JAVA_HOME=jdk-install-dir
export JAVA_HOME
PATH=$JAVA_HOME/bin:$PATH
export PATH

Korn and bash shells:

export JAVA_HOME=jdk-install-dir
export PATH=$JAVA_HOME/bin:$PATH

Type the following command to activate the new path settings immediately:
$ source ~/.bash_profile

Verify new settings:
$ echo $JAVA_HOME
$ echo $PATH