[Ubuntu] Install SUN jdk on Ubuntu 11.10

1. check ubuntu version
   $ cat /etc/issue
   
2. Install
   
   • Download jdk bin ( or proper .bin)
     
     
   • $mkdir /usr/bin/jvm/sun-jdk6-dev
   • mv /usr/bin/jvm/sum-jdk6-dev
   • cd /usr/bin/jvm/sum-jdk6-dev
   • chmod 755
   • ./
   • vim /etc/bash.bashrc, and add the following contents
     PATH=/usr/bin/jvm/sum-jdk6-dev/jdk1.6.0_27/bin:$PATH
     CLASSPATH=/usr/bin/jvm/sum-jdk6-dev/jdk1.6.0_27/lib
     JAVA_HOME=/usr/bin/jvm/sum-jdk6-dev
   • update alternatives
     $ sudo up-alternatives --install /usr/bin/java java /usr/bin/jvm/sum-jdk6-dev/jdk1.6.0_27//java 300
     $ sudo update-alternatives --install /usr/bin/javac javac/usr/bin/jvm/sum-jdk6-dev/jdk1.6.0_27/bin/javac 300
     
   • Select correct java
     $ sudo update-alternatives --config java
     0 /usr/lib/jvm/java-6-openjdk/jre/bin/java 1061 自动模式
     1 /usr/lib/jvm/java-6-openjdk/jre/bin/java 1061 手动模式
     * 2 /usr/lib/jvm/java-6-sun/bin/java 300 手动模式
     要维持当前值, 请按回车键，或者键入选择的编号：2
   • veryfy
     $java -version
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3. x
4. Reference
   
   
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