Installation Setup

1. Please visit sun java website to download any java jdk version you like.

   http://java.sun.com/javase/downloads/index.jsp
2. #
3. Click download, select Linux platform, language and accept license and continue.
4. Select “Linux RPM in self-extracting file” and download jdk_filename-rpm.bin file (jdk-6u6-linux-i586-rpm.bin).
5. After downloaded, changed to the directory where you saved the file.
6. Login to root user or su to root or sudo, and issue ‘chmod +x jdk_filename.-rpm.bin’ to make it executable.

   
   chmod +x jdk_filename.bin
   
   

7. Execute it

   
   ./jdk_filename-rpm.bin
   
   

8. Press space bar , repeat until system prompt to enter yes or no, type y and enter to continue.
9. This will output a .rpm file in same directory
10. Issue ‘rpm -i jdk_filename.rpm’, this will install all jdk files on linux system /usr/java/jdk-version/

    
    rpm -i jdk_filename.rpm
    
    

11. Create symbol links to make it execute anywhere

    ln -s /usr/java/jdk1.6.0/bin/java /usr/bin/java
    ln -s /usr/java/jdk1.6.0/bin/javac /usr/bin/javac

12. type java -version, DONE !!

Post-Installation Setup

Set JAVA_HOME into environment variable

Copy following statement and append to /etc/profile or .bashrc file, make system set JAVA_HOME into system environment variable.

export JAVA_HOME="/usr/java/jdk1.6.0;"

P.S Please visit How to install JDK on Ubuntu, if you want to know how to install java jdk with apt-get.