[Install Java 10 on Linux] - ubuntu, java 10, jdk

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Option 1: Easy Installation (PPA)

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

Option 2: Manual Installation

• Download OpenJDK 10 binaries for Linux.

• Untar the downloaded archive:

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

• Move the extracted archive to where your system keeps your installed JDKs:

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

• Add the new Java alternative:

    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
  

• Update your system's java alternatives and choose 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: 
  

  and

    $ 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
  

• Verify your installation with:

    $ 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)
  

  and

    $ javac --version
    javac 10
  

• Logout account, Done

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If you prefer Oracle's JDK, download it and follow the installation steps as shown above.