How to install Java

Configure Java_Home on Windows:

• Right click My Computer and select Properties.
• On the Advanced tab, select Environment Variables, and then edit JAVA_HOME to point to where the JDK software is located, for example, C:\Program Files\Java\jdk1.6.0_02

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/jdk1.5.0_07/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