JAVA_HOME and JRE PATH

Install Java2 SDK on linux. extract JDK in folder and edit .bashrc file in your root folder.
add following lines to .bashrc file as per your extracted folder and JDK version.
export JAVA_HOME=/home/download/java/jdk1.6.0_03
export PATH=${JAVA_HOME}/bin:${JAVA_HOME}/jre/bin:${PATH}