1、使用PPA源简单安装配置JDK10
1）安装命令
sudo add-apt-repository ppa:linuxuprising/java sudo apt-get update sudo apt-get install oracle-java10-installer
2）配置JDK10为默认
sudo apt-get install oracle-java10-set-default
3）验证安装
$ java -version
java version "10.0.1" 2018-04-17
Java(TM) SE Runtime Environment 18.3 (build 10.0.1+10)
Java HotSpot(TM) 64-Bit Server VM 18.3 (build 10.0.1+10, mixed mode)
2、手动安装配置JDK10
JDK10下载地址：https://jdk.java.net/10/
1）解压下载的文件
tar xzvf openjdk-10_linux-x64_bin.tar.gz
2）移动到系统保存已安装JDK的位置
sudo mv jdk-10 /usr/lib/jvm/java-10-openjdk-amd64/
3）添加新的Java方案
sudo update-alternatives --install /usr/bin/java java /usr/lib/jvm/java-10-openjdk-amd64/bin/java 1
sudo update-alternatives --install /usr/bin/javac javac /usr/lib/jvm/java-10-openjdk-amd64/bin/javac 1
4）更新系统的java并选择JDK 10
$ sudo update-alternatives --config java
here are 3 choices for the alternative java (providing /usr/bin/java).
Selection Path Priority Status
------------------------------------------------------------
0 /usr/lib/jvm/java-9-openjdk-amd64/bin/java 1091 auto mode
* 1 /usr/lib/jvm/java-10-openjdk-amd64/bin/java 1 manual mode
2 /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java 1081 manual mode
3 /usr/lib/jvm/java-9-openjdk-amd64/bin/java 1091 manual mode
Press <enter> to keep the current choice[*], or type selection number:
和
$ sudo update-alternatives --config javac
There are 3 choices for the alternative javac (providing /usr/bin/javac).
Selection Path Priority Status
------------------------------------------------------------
* 0 /usr/lib/jvm/java-9-openjdk-amd64/bin/javac 1091 auto mode
1 /usr/lib/jvm/java-10-openjdk-amd64/bin/javac 1 manual mode
2 /usr/lib/jvm/java-8-openjdk-amd64/bin/javac 1081 manual mode
3 /usr/lib/jvm/java-9-openjdk-amd64/bin/javac 1091 manual mode
Press <enter> to keep the current choice[*], or type selection number: 1
update-alternatives: using /usr/lib/jvm/java-10-openjdk-amd64/bin/javac to provide /usr/bin/javac (javac) in manual mode
5）验证安装
$ java --version
openjdk 10 2018-03-20
OpenJDK Runtime Environment 18.3 (build 10+46)
OpenJDK 64-Bit Server VM 18.3 (build 10+46, mixed mode)
和
$ javac --version
javac 10
3、使用sdkman安装配置JDK10
sdkman安装：https://sdkman.io/install
1）列出所有可用JDK版本
sdk list java
提示：
==============================================================================
Available Java Versions
==============================================================================
9.0.4-open
+ 8u161-oracle
8.0.191-oracle
> + 8.0.171-oracle
7.0.191-zulu
12.ea.15-open
11.0.1-open
10.0.2-open
1.0.0-rc8-graal
==============================================================================
+ - local version
* - installed
> - currently in use
==============================================================================
2）安装指定的JDK版本
sdk install java 10.0.2-open
提示：
Downloading: java 10.0.2-open
In progress...
################# 12,3%
3）使用指定的JDK版本
sdk use java 10.0.2-open
提示：
Using java version 10.0.2-open in this shell.