如何在Ubuntu下安装JDK 10？

Question

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

Oracle帮助中心的安装说明仅说明如何在Linux平台上下载和解压缩归档,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: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起义

选项2:手动安装

• 下载适用于Linux的OpenJDK 10二进制文件.

• 解压下载的档案:

  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,请下载它并按照上面所示的安装步骤进行操作.

Answer 2

在java 10上有一个安装oracle的java的ppa:https://launchpad.net/~linuxuprising/+archive/ubuntu/java

我不确定这是否会得到保留.它似乎是关于如何处理oracle java安装(参考文档)的webupd8方式的副本.

如何使用这个ppa:

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

验证安装:

$ /usr/lib/jvm/java-10-oracle/bin/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)

设置环境变量(默认为java10)

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

Answer 3

我发现sdkman是一个非常有用的工具，因为它提供了一种方便的方法来从外壳程序安装（管理！）在给定时间内通过外壳安装 / 使用的 JDK 。

例如，安装后，您可以：

• 列出可用的JDK（列出候选人）：sdk list java

这将显示如下内容：

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

• 安装特定版本：sdk install java 10.0.2-open

它将显示如下内容：

Downloading: java 10.0.2-open

In progress...

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

• 使用特定版本： sdk use java 10.0.2-open

它将显示如下内容：

Using java version 10.0.2-open in this shell.

用法

有关更多信息，请参见https://sdkman.io/usage