linux:ubuntu21.04安装java se 16(jdk 16.0.2)

https://www.oracle.com/java/

https://www.oracle.com/cn/java/technologies/javase-downloads.html 

root@lhdpc:/usr/local/source# tar -zxvf jdk-16.0.2_linux-x64_bin.tar.gz 

root@lhdpc:/usr/local/source# mv jdk-16.0.2 /usr/local/soft/

root@lhdpc:/usr/local/source# vi /etc/profile

export JAVA_HOME=/usr/local/soft/jdk-16.0.2
export CLASSPATH=.:$JAVA_HOME/lib
export PATH=$PATH:$JAVA_HOME/bin

root@lhdpc:/usr/local/source# source /etc/profile

root@lhdpc:/usr/local/source# java --version
java 16.0.2 2021-07-20
Java(TM) SE Runtime Environment (build 16.0.2+7-67)
Java HotSpot(TM) 64-Bit Server VM (build 16.0.2+7-67, mixed mode, sharing)

root@lhdpc:/usr/local/source# more /etc/os-release
NAME="Ubuntu"
VERSION="21.04 (Hirsute Hippo)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 21.04"
VERSION_ID="21.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=hirsute
UBUNTU_CODENAME=hirsute