如果你想使用Java 10之外的AdoptOpenJDK发行版，你可以使用AdoptOpenJDK网站上描述的官方存储库(也适用于Debian):

Import the official AdoptOpenJDK GPG key by running the following command: wget -qO - https://adoptopenjdk.jfrog.io/adoptopenjdk/api/gpg/key/public | sudo apt-key add - Import the AdoptOpenJDK DEB repository by running the following command: sudo add-apt-repository --yes https://adoptopenjdk.jfrog.io/adoptopenjdk/deb/ If you get a command not found error, try running: apt-get install -y software-properties-common Then repeat the first command. Refresh your package list with apt-get update and then install your chosen AdoptOpenJDK package. For example, to install OpenJDK 8 with the HotSpot VM, run: apt-get install <adoptopenjdk-8-hotspot>

您可以在https://adoptopenjdk.jfrog.io/adoptopenjdk/deb/pool/main/a/下找到可用的软件包名称/ Java版本

按照这个视频，我已经成功地在Ubuntu 18.04 LTS上安装了JDK 10。

我正在复制视频描述的节选。

只要打开终端，然后输入以下命令:

Java安装(PPA)

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

用于设置环境变量(使java10默认)

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

在Ubuntu 16.04、Linux Mint、Debian等Linux系统上安装JDK 10的方法相同。

安装在ubuntu 18.04中

我的解决办法是，

$ sudo apt update

安装OpenJDK 8:

$ sudo apt install openjdk-8-jdk

通过运行以下命令来验证Java安装，该命令将打印Java版本:

$ java -version

输出应该是这样的:

输出:

openjdk version "1.8.0_191"
OpenJDK Runtime Environment (build 1.8.0_191-8u191-b12-2ubuntu0.18.04.1-b12)
OpenJDK 64-Bit Server VM (build 25.191-b12, mixed mode)

安装Oracle的Java JDK要求您在开始安装之前接受Oracle许可证。这只需要一次。如果出于某种原因需要自动化安装，可以运行以下命令在没有用户交互的情况下进行安装，例如，这对于自动脚本很有用。

sudo add-apt-repository -y ppa:webupd8team/java
sudo apt-get update
echo debconf shared/accepted-oracle-license-v1-1 select true | sudo debconf-set-selections
echo debconf shared/accepted-oracle-license-v1-1 seen true | sudo debconf-set-selections
sudo apt-get -y install oracle-java8-installer
java -version

参考问Ubuntu问题如何设置OpenJDK的JAVA_HOME ?，

如何在Ubuntu (Linux)下安装Open JDK (Java开发工具包)?

Open Terminal from Application Dash or press Ctrl+Alt+T Update repository: sudo add-apt-repository ppa:openjdk-r/ppa # only Ubuntu 17.4 and earlier sudo apt update Optional: To search available distributions of openjdk, use the following command: apt search openjdk Install the appropriate version with the following command: sudo apt install openjdk-8-jdk sudo apt install openjdk-8-source #this is optional, the jdk source code For JAVA_HOME (Environment Variable) type command as shown below, in "Terminal" using your installation path... export JAVA_HOME=/usr/lib/jvm/java-8-openjdk (Note: /usr/lib/jvm/java-8-openjdk is symbolically used here just for demostration. You should use your path as per your installation.) For PATH (Environment Variable) type command as shown below, in Terminal: export PATH=$PATH:$JAVA_HOME/bin To check your installation: java -version

如果你不想为Ubuntu安装OpenJDK: JDK源安装程序，可以试试这个方法