一、下載JDK 11 LTS:https://www.oracle.com/technetwork/java/javase/downloads/jdk11-downloads-5066655.htmlhtml
二、安裝JDK 11 TLS:java
# rpm -ivh jdk-11.0.6_linux-x64_bin.rpmlinux
# java -versionvim
或oracle
# tar -xf jdk-11.0.6_linux-x64_bin.tar.gz -C /usr/localide
# cd /usr/localspa
# mv jdk-11.0.6/ jdkhtm
配置JDK環境變量:blog
# vim /etc/profile.d/jdk11.shit
export JAVA_HOME=/usr/local/jdk
export JRE_HOME=$JAVA_HOME
export CLASSPATH=.:$JAVA_HOME/lib
export PATH=$JAVA_HOME/bin:$PATH
# . /etc/profile.d/jdk11.sh
# java -version
三、多個JDK版本中選擇JDK 11 LTS做爲默認版本:
# alternatives --config java
備註:默認只有以前使用rpm包安裝的JDK 8
# alternatives --install /usr/bin/java java /usr/local/jdk/bin/java 1
備註:alternatives [options] --install link name path priority
# alternatives --config java