java - 如何在 Ubuntu 下安装 JDK 10？

Question

如何在 Ubuntu 上安装 Java Development Kit (JDK) 10？

installation instructions Oracle 帮助中心上只说明了如何在 Linux 平台上下载和解压压缩包，无需任何系统设置。

Answer 1

更新:JDK 11 现已推出

sudo apt-get install openjdk-11-jdk

---

对于 JDK 10

选项 1:简易安装 (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 Linux 的二进制文件。

• 解压下载的存档:

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

• 将提取的存档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/
  

• 添加新的 Java 替代方案:

  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 替代品并选择 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
  

• 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
  

• 完成

---

如果您更喜欢 Oracle 的 JDK，download it并按照如上所示的安装步骤进行操作。