【Unbuntu】jdk安装

下载：https://www.oracle.com/java/technologies/downloads/
version：jdk-8u333-linux-x64.tar.gz

解压 tar -zxvf jdk-8u333-linux-x64.tar.gz

vim /etc/profile

export JAVA_HOME=/绝对路径/jdk/jdk1.8.0_333
export JRE_HOME=/绝对路径/jdk/jdk1.8.0_333/jre
export CLASSPATH=$CLASSPATH:$JAVA_HOME/lib:$JAVA_HOME/jre/lib
export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH:$HOME/bin

source /etc/profile

java -version