更新：JDK 11 现已上市

sudo apt-get install openjdk-11-jdk

对于 JDK 10

选项 1：易于安装 （PPA）

sudo add-apt-repository ppa:linuxuprising/java
sudo apt-get update
sudo apt-get install oracle-java10-installer

然后设置为默认值：

sudo apt-get install oracle-java10-set-default

最后验证安装：

$ 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)

来源： Linux Uprising

选项 2：手动安装

• 下载 OpenJDK 10 二进制文件 for Linux。

• 解压缩下载的存档：

  tar xzvf openjdk-10_linux-x64_bin.tar.gz
  

• 将解压缩的归档文件移动到系统保存已安装的 JDK 的位置：

  sudo mv jdk-10 /usr/lib/jvm/java-10-openjdk-amd64/
  

• 添加新的 Java 备选方案：

  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
  

• 更新系统的 java 备选方案并选择 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
  

• 通过以下方式验证您的安装：

  $ 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
  

• 做

如果您更喜欢Oracle的JDK，请下载它并按照上面显示的安装步骤进行操作。

我发现 SdkMan！是一个非常有用的工具，因为它提供了一种从 shell 管理 JDK的便捷方法。

例如，安装后，您可以：

安装特定的 JDK 版本：sdk install java 10.0.2-open

Downloading: java 10.0.2-open

In progress...

#################                             12,3%

使用特定的 JDK 版本：sdk use java 10.0.2-open

Using java version 10.0.2-open in this shell.

列出可用的 JDK：sdk list java

===================================================================
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
=======================================================================

还有更多

查看 https://sdkman.io/usage