Ubuntu - Jdk 安装

Ubuntu 下安装 jdk

1.解压

sudo tar zxvf ./jdk-7u45-linux-x64.tar.gz

2.环境变量

vi ~/.bashrc 或者 ~/.zshrc

export JAVA_HOME=/opt/Java/jdk/jdk1.7 
export CLASSPATH=${JAVA_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH

3.立即生效

source ~/.bashrc