How to install JDK 6 on CentOS

This article today will show you how to download and install JDK 6 on CentOS through command line.
To download installer, just follow these commands
For x86 machine

[root@localhost phuongvu]# wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn/java/jdk/6u45-b06/jdk-6u45-linux-i586-rpm.bin

And x64 machine

[root@localhost phuongvu]# wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn/java/jdk/6u45-b06/jdk-6u45-linux-x64-rpm.bin

Now check whether it is installed

[root@localhost phuongvu]# ls
Desktop    Downloads                    Music     Public     Videos
Documents  jdk-6u45-linux-i586-rpm.bin  Pictures  Templates

Grant execute permission for it

[root@localhost phuongvu]# chmod +x jdk-6u45-linux-i586-rpm.bin

Now, just install

[root@localhost phuongvu]# ./jdk-6u45-linux-i586-rpm.bin

Output:

Unpacking...
Checksumming...
Extracting...
UnZipSFX 5.50 of 17 February 2002, by Info-ZIP (Zip-Bugs@lists.wku.edu).
  inflating: jdk-6u45-linux-i586.rpm
  inflating: sun-javadb-common-10.6.2-1.1.i386.rpm
  inflating: sun-javadb-core-10.6.2-1.1.i386.rpm
  inflating: sun-javadb-client-10.6.2-1.1.i386.rpm
  inflating: sun-javadb-demo-10.6.2-1.1.i386.rpm
  inflating: sun-javadb-docs-10.6.2-1.1.i386.rpm
  inflating: sun-javadb-javadoc-10.6.2-1.1.i386.rpm
Preparing...                ########################################### [100%]
   1:jdk                    ########################################### [100%]
Unpacking JAR files...
        rt.jar...
        jsse.jar...
        charsets.jar...
        tools.jar...
        localedata.jar...
        plugin.jar...
        javaws.jar...
        deploy.jar...
Installing JavaDB
Preparing...                ########################################### [100%]
   1:sun-javadb-common      ########################################### [ 17%]
   2:sun-javadb-core        ########################################### [ 33%]
   3:sun-javadb-client      ########################################### [ 50%]
   4:sun-javadb-demo        ########################################### [ 67%]
   5:sun-javadb-docs        ########################################### [ 83%]
   6:sun-javadb-javadoc     ########################################### [100%]

Done.

Now check your JDK version

[root@localhost phuongvu]# java -version
java version "1.6.0_45"
Java(TM) SE Runtime Environment (build 1.6.0_45-b06)
Java HotSpot(TM) Client VM (build 20.45-b01, mixed mode, sharing)

Done.