1.从Google code下载jdkhttps://storage.googleapis.com/google-code-archive-downloads/v2/code.google.com/autosetup1/jdk-6u20-linux-i586.bin
2. 修改权限
sudo chmod 777 jdk-6u20-linux-i586.bin
3.运行安装
./jdk-6u20-linux-i586.bin
4.修改环境变量
gedit ~/.bashrc
export JAVA_HOME=/usr/lib/jvm/jdk1.6.0_20
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH
5,使能
source ~/.bashrc
6.查看
java -version
