JDK environment variable settings in Ubuntu

JDK sets environment variables in Ubuntu environment variables: We used global settings before, and now we use user-level settings. Operating System: Ubuntu 12.04 JDK: 1.6.0 _ 45 step: see the previous steps to configure JDK. We mainly modify the 4th step! # Vi ~ /. Bashrc adds the following content: export JAVA_HOME =/usr/local/jdk1.6.0 _ 45 export JRE_HOME =$ {JAVA_HOME}/jre export CLASSPATH =$ {JAVA_HOME}/lib: $ {JRE_HOME}/lib export PATH =$ {JAVA_HOME}/bin: $ PATH: Perform Step 1. JDK has been set in Ubuntu.