!!!The Java Programming Language

The following PDF file provides a summary of Java:  [Java.pdf|http://wiki.arahant.com/files/Java.pdf]

!! Java Setup on Linux

Untar java to /opt

create link:  {{{ln -s jdk1.8.0_25 java}}}

For system-wide effect:

Create a file named {{{/etc/profile.d/java.sh}}} containing:

{{{
export JAVA_HOME=/opt/java
export PATH=$PATH:$JAVA_HOME/bin
}}}

For local user affect only add the two exports to {{{~/.profile}}}