JAVA

    How to Install JAVA 8 on Ubuntu 18.04/16.04, Linux Mint 19/18

    RahulBy Updated:187 Comments2 Mins Read

    There are two standard types of installation available are JDK and JRE. JDK (Java Development Kit) provides the ability to develop a new Java application, which includes Java compiler. JRE (Java Runtime Environment) provides the runtime environment for any Java application with applets. The Java developers required to install JDK and JRE both on their system to create new Java Applications.

    IMPORTANT: The Oracle Java 8 is no longer available to download publicaly. You can use below link to install Java 11. You may also continue to this tutorial to install OpenJDK 8.

    Use this tutorial to install OpenJDK Java 8 on Ubuntu 19.10, 18.04 LTS, 16.04 LTS, LinuxMint 19, 18 using PPA. Follow the below steps to install Java 8 on Ubuntu via the command line.

    Step 1 – Install Java 8 on Ubuntu

    The OpenJDK 8 is available under default Apt repositories. You can simply install Java 8 on an Ubuntu system using the following commands.

    Run below commands to install Java 8 on Ubuntu and LinuxMint.

    sudo apt update
sudo apt install openjdk-8-jdk openjdk-8-jre

    Step 2 – Verify Java Installation

    You have successfully installed Java 8 on your system. Let’s verify the installed and current active version using the following command.

    java -version

openjdk version "1.8.0_252"
OpenJDK Runtime Environment (build 1.8.0_252-8u252-b09-1ubuntu1-b09)
OpenJDK 64-Bit Server VM (build 25.252-b09, mixed mode)

    Step 3 – Setup JAVA_HOME and JRE_HOME Variable

    As you have installed Java on your Linux system, You must have to set JAVA_HOME and JRE_HOME environment variables, which is used by many of the Java applications to find Java libraries during runtime. You can set these variables in /etc/environment file using the following command.

    cat >> /etc/environment <<EOL
JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64
JRE_HOME=/usr/lib/jvm/java-8-openjdk-amd64/jre
EOL

    All done, you have successfully installed Java 8 on a Linux system. You may also need to install Tomcat server to run your Java web application. Use our another tutorial to Install Tomcat 7 or Install Tomcat 8 or Install Tomcat 9 on Ubuntu, Debian, and LinuxMint systems.

    Share.

    I, Rahul Kumar am the founder and chief editor of TecAdmin.net. I am a Red Hat Certified Engineer (RHCE) and working as an IT professional since 2009..

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    187 Comments

    1. Costin C-tin on

      As Benjamin Hecht (and others) pointed out “Permission denied” is raised when trying “cat >> /etc/environment <<EOL ” . Even with “sudo cat >> ” the same applies. To be able to write to /etc/environment this needs to be used:
      cat | sudo tee -a /etc/environment <<EOL
      JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64
      JRE_HOME=/usr/lib/jvm/java-8-openjdk-amd64/jre
      EOL

      Reply
      • Kamsala Rajesh on

        How to upgrade or how to remove java-8 version and install java7 how to set environment variable, can anyone help me with my question?

        Reply
    2. Benjamin Hecht on

      Hi, I’m getting ‘permission denied’ as an error:

      (base) [email protected]:~$ java -version
      openjdk version “1.8.0_252”
      OpenJDK Runtime Environment (build 1.8.0_252-8u252-b09-1~18.04-b09)
      OpenJDK 64-Bit Server VM (build 25.252-b09, mixed mode)
      (base) [email protected]:~$ cat >> /etc/environment < JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64
      > JRE_HOME=/usr/lib/jvm/java-8-openjdk-amd64/jre
      > EOL
      bash: /etc/environment: Permission denied
      (base) [email protected]:~$ cat >> /etc/environment < JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64
      > JRE_HOME=/usr/lib/jvm/java-8-openjdk-amd64/jre
      > EOL
      bash: /etc/environment: Permission denied

      Any help would be greatly appreciated! Thanks! Trying to use java for loading a jnlp file so using Java 8 on 18.04.4 appears to be the only way.

      Reply
      • Mattis on

        Try: sudo nano /etc/environment (or use any other text editor)
        Then add the lines:
        JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64
        JRE_HOME=/usr/lib/jvm/java-8-openjdk-amd64/jre

        Reply
    3. Levent GUREN on

      There is a space after equal sign at this line:
      JAVA_HOME= /usr/lib/jvm/java-8-openjdk-amd64
      This must not be there. 🙂

      Reply
    6. Marcus Siqueira on

      Interesting stuff! Keep the site up you have a lot of good content! You just helped me and I believe you helped a lot more people

      Reply
      • Rahul on

        I have corrected the title. Earlier this tutorial was for the Oracle Java installation, But as of now, Oracle Java 8 is not available directly, So we change it to OpenJDK.

        Reply
    13. Sathishkumar on

      Hi, I’m using Ubuntu 18.04 and I’m getting below error :

      Package oracle-java8-installer is not available, but is referred to by another package.
      This may mean that the package is missing, has been obsoleted, or
      is only available from another source

      E: Package ‘oracle-java8-installer’ has no installation candidate

      Reply
    15. Edwin Smith Velandia Salazar on

      work for me,

      sudo apt-get install default-jdk
      sudo apt autoremove
      sudo apt-get install default-jre
      java –version
      sudo apt install openjdk-8-jdk

      sudo update-alternatives –config java
      Existen 2 opciones para la alternativa java (que provee /usr/bin/java).

      Selección Ruta Prioridad Estado
      ————————————————————
      0 /usr/lib/jvm/java-11-openjdk-amd64/bin/java 1101 modo automático
      1 /usr/lib/jvm/java-11-openjdk-amd64/bin/java 1101 modo manual
      * 2 /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java 1081 modo manual

      Pulse para mantener el valor por omisión [*] o pulse un número de selección:

      *** in my case, i used java-8, press 2

      and my app work.

      Reply
    16. Jignesh on

      It’s not working and it won’t work. You need to update your article. Oracle has made it mandatory to create an account and download the required version. The PPA method is deprecated and it won’t work.

      TIP: Make sure you download the binary version or the Oracle 8 JDK.

      Reply
    17. sirius2834 on

      Actually it is possible to install Java 8 u 131 to Mint 19+ or Ubuntu 18+.

      Search for these files on the Internet:

      oracle-java8-installer_8u131-1_webupd8_2_all.deb
      oracle-java8-set-default_8u131-1_webupd8_2_all.deb
      oracle-java8-unlimited-jce-policy_8u131-1_webupd8_2_all.deb

      Then:

      sudo oracle-java8-installer_8u131-1_webupd8_2_all.deb
      sudo oracle-java8-set-default_8u131-1_webupd8_2_all.deb
      (and you can install the unlimited one, but not necessary by defalut)

      In contrary to the abandoned PPA, you can install these without problems and the ‘Oracle Java 8 Plugin Control Panel’ will work too.

      If the .jnlp files don’t open in Firefox, then select “open with” and enter “javaws” .

      There is virtually no info of Java 8 for the latest Mint/Ubutu installation over the internet and I had to figure it out too.

      I hope it helps!

      Reply
      • Rahul on

        Hi,

        Java 8 is no more available to download from Oracle site. But if you have any existing installation on another system, can be used to install to your system.

        Reply
    18. Harshit on

      This is not working. It is showing this error E: Package ‘oracle-java8-installer’ has no installation candidate

      Reply
    19. krishna on

      Hi
      when i try to intall the java8. By these commands
      sudo add-apt-repository ppa:webupd8team/java
      sudo apt update; sudo apt install oracle-java8-installer
      after the second command i am getting error like this
      “Package oracle-java8-installer is not available, but is referred to by another package.
      This may mean that the package is missing, has been obsoleted, or
      is only available from another source”
      what to do ? and i have tried everything to come out of this i can’t able to do this
      plzz help me out.

      Reply
    20. Va Sja on

      Unfortunately don’t work anymore 🙁
      >
      >~/Downloads/jdk1.8.0_202$ sudo apt-get install oracle-java8-set-default
      >[sudo] password for i1:
      >Reading package lists… Done
      >Building dependency tree
      >Reading state information… Done
      >E: Unable to locate package oracle-java8-set-default

      Reply
    21. Chuanpeng Hu on

      Hi, there,

      Thanks so much for your post. It’s helpful.
      But I failed to install java,

      > sudo apt install oracle-java11-installer

      I got this error message:

      Resolving login.oracle.com (login.oracle.com)… 209.17.4.8
      Connecting to login.oracle.com (login.oracle.com)|209.17.4.8|:443… connected.
      HTTP request sent, awaiting response… 401 Authorization Required

      Username/Password Authentication Failed.
      download failed
      Oracle JDK 8 is NOT installed.
      dpkg: error processing package oracle-java8-installer (–configure):
      installed oracle-java8-installer package post-installation script subprocess returned error exit status 1
      Processing triggers for shared-mime-info (1.9-2) …
      Setting up oracle-java11-set-default (11.0.2-2~linuxuprising1) …
      Processing triggers for gnome-menus (3.13.3-11ubuntu1.1) …
      Processing triggers for hicolor-icon-theme (0.17-2) …
      Processing triggers for fontconfig (2.12.6-0ubuntu2) …
      Errors were encountered while processing:
      oracle-java8-installer
      E: Sub-process /usr/bin/dpkg returned an error code (1)

      One possibility is that “401 is because 8u211 is the first version that is paid only. The previous 8u201 was the last freely available version.” as suggested by one comment here: https://stackoverflow.com/questions/46815897/jdk-8-is-not-installed-error-404-not-found

      Reply
    22. Neha on

      I need jdk version to be like this

      Java version “1.8.0_40”
      Java™ SE Runtime Environment (build 1.8.0_40-b25)
      Java HotSpot™ 64-Bit Server VM (build 25.40-b25, mixed mode)

      How do I do it for Ubuntu 18.10

      Reply
    23. Alexandre Pedro on

      Linux Mint 19.1, couldn’t do the last step as the guide says. Ended up doing:
      sudo nano /etc/environment

      Paste in:
      JAVA_HOME=/usr/lib/jvm/java-8-oracle
      JRE_HOME=/usr/lib/jvm/java-8-oracle/jre

      Save and exit.

      Thank you for the guide!

      Reply
    25. Veda on

      But live-streaming of the game can affect their job and makes these enjoy theirs favored game on laptop or pc.

      Reply
    26. Ramonita on

      If they bests the seller he gets twice the total amount
      of money inside the payout than he’d have if he had gained without doubling.

      Reply
    29. vanderlei on

      sudo apt-get install oracle-java8-installer
      sudo: não foi possível resolver máquina leni
      Lendo listas de pacotes… Pronto
      Construindo árvore de dependências
      Lendo informação de estado… Pronto
      Alguns pacotes não puderam ser instalados. Isto pode significar que
      você solicitou uma situação impossível ou, se você está usando a
      distribuição instável, que alguns pacotes requeridos não foram
      criados ainda ou foram retirados da “Incoming”.
      A informação a seguir pode ajudar a resolver a situação:

      Os pacotes a seguir têm dependências desencontradas:
      oracle-java8-installer : Depende: java-common (>= 0.24) mas não é instalável
      Recomenda: gsfonts-x11 mas não é instalável
      Recomenda: oracle-java8-set-default mas não será instalado
      E: Impossível corrigir problemas, você manteve (hold) pacotes quebrados.

      Reply
    30. Ankit Tiwari on

      Hello

      Connecting to download.oracle.com (download.oracle.com)|104.122.105.69|:80… connected.
      HTTP request sent, awaiting response… 404 Not Found
      2018-01-22 13:59:51 ERROR 404: Not Found.

      download failed
      Oracle JDK 8 is NOT installed.
      dpkg: error processing package oracle-java8-installer (–configure):
      subprocess installed post-installation script returned error exit status 1
      Errors were encountered while processing:
      oracle-java8-installer
      E: Sub-process /usr/bin/dpkg returned an error code (1)

      I am getting this error while running install command on terminal on linux mint 17.2.

      Reply
    31. Bill Schwob on

      when i do this all i get is

      download failed
      Oracle JDK 8 is NOT installed.
      dpkg: error processing package oracle-java8-installer (–configure):
      subprocess installed post-installation script returned error exit status 1
      Errors were encountered while processing:
      oracle-java8-installer
      E: Sub-process /usr/bin/dpkg returned an error code (1)

      Reply
    32. Nathan on

      Great information. Appreciate the time you took to share this feedback for us computer nerds. Love your blog too. Java is still one of the best options out there.

      Reply
    33. Jari on

      step 1 Can do add-apt-repository ppa:webupd8team/java && apt-get update && apt-get install oracle-java8-installer allso little bit easy 🙂

      Reply
    34. BK on

      hi,
      there is an error with python-samba while installing oracle-java8-installer.
      [/var/cache/apt/archives/python-samba_2%3a4.3.11+dfsg-0ubuntu0.16.04.9_i386.deb
      E: Sub-process /usr/bin/dpkg returned an error code (1)]
      how can i solve this problem?

      Reply
      • Icthyo on

        Hello:

        You you either open ‘Files’ or ‘nautilus’ with root privileges, you will be able to open the etc/environment file, edit it and save afterward.

        Reply
      • Armando on

        the easiest way is to do it through the terminal using sudo for root access (which enables you to edit sensitive files)
        $ sudo gedit /etc/environment
        add the lines
        then save.
        done.

        Reply
    36. Tim Cooper on

      This seems to install JRE _not_ JDK as the title of the article states.
      Several people have pointed this out in the comments yet these queries remain unanswered.
      Perhaps the title of the article is incorrect…

      Reply
      • Rahul K. on

        Hi Tim,

        This installs JDK and JRE both. After installation you can check install java compiler.

        $ javac -version

        javac 1.8.0_111

        Reply
    37. Jeff on

      Thank you! This works Great! I was also able to integrate Apache Solr on my website

      I am thinking about keeping this up and going on my vps server

      Reply
    38. meya on

      Hello, i f i understand this will install JDK too. But i cant find my JDK directory.
      any help or explanation ? thank you in advance

      Reply
    49. Manjunath on

      If you get “Cannot add PPA ‘ppa:cooperjona/lightread’ . Please check that the PPA name or format is correct.” error

      sudo -E add-apt-repository ppa:ppaname/ppa
      instead of

      sudo add-apt-repository ppa:ppaname/ppa

      Reply
      • tohuuu on

        Encountered the same issue – i had to modify the timeout settings in /var/lib/dpkg/info/oracle-java8-installer.postinst to make it run. Sadly, the installer script doesn’t use the system-wide /etc/wgetrc but creates its own wgetrc each time it runs. So, you’ll have to search for the line “echo “timeout = 15″ >> wgetrc” in the postinst file i’ve mentioned above. Now, just set a longer timeout or remove the line completely.

        Reply
    78. Ian on

      I’m getting an error when running the command:

      sudo add-apt-repository ppa:webupd8team/java

      The error is:
      Cannot add PPA: ‘ppa:~webupd8team/ubuntu/java’.
      ERROR: ‘~webupd8team’ user or team does not exist.

      Reply
    79. lanowar on

      Thanks but it’s not working for me, this is the message i got:

      ~ $ sudo apt-get update
      E: Type ‘sudo’ is not known on line 1 in source list /etc/apt/sources.list.d/mono-xamarin.list
      E: The list of sources could not be read.

      Reply
    81. Allen Burns on

      Sure wish this wasn’t the first item coming up in a google search of “installing java 8 jdk on ubuntu” because this isn’t the jdk!

      Reply
    106. Leenie on

      Webupd8 Java PPA DOWN!!!!! When will it be updated?

      W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://ppa.launchpad.net trusty Release: The following signatures were invalid: BADSIG C2518248EEA14886 Launchpad VLC

      W: Failed to fetch http://ppa.launchpad.net/webupd8team/java/ubuntu/dists/trusty/Release

      W: Some index files failed to download. They have been ignored, or old ones used instead.

      Reply
    110. Harshita on

      Hi Rahul,
      I am new to Ubuntu. I tried the setps to install jdk 1.8.
      While setting environment, I found the error
      Error: Could not open input file: /usr/java/jre1.8.0_45/lib/rt.pack
      jsse.jar…
      Error: Could not open input file: /usr/java/jre1.8.0_45/lib/jsse.pack
      charsets.jar…
      Error: Could not open input file: /usr/java/jre1.8.0_45/lib/charsets.pack
      localedata.jar…
      Error: Could not open input file: /usr/java/jre1.8.0_45/lib/ext/localedata.pack
      jfxrt.jar…
      Error: Could not open input file: /usr/java/jre1.8.0_45/lib/ext/jfxrt.pack
      plugin.jar…
      Error: Could not open input file: /usr/java/jre1.8.0_45/lib/plugin.pack
      javaws.jar…
      Error: Could not open input file: /usr/java/jre1.8.0_45/lib/javaws.pack
      deploy.jar…
      Error: Could not open input file: /usr/java/jre1.8.0_45/lib/deploy.pack
      /var/lib/dpkg/info/jre1.8.0-45.postinst: line 641: /usr/sbin/alternatives: No such file or directory
      dpkg: error processing package jre1.8.0-45 (–configure):
      subprocess installed post-installation script returned error exit status 127
      Setting up oracle-java8-set-default (8u45+8u33arm-1~webupd8~1) …
      Errors were encountered while processing:
      jre1.8.0-45
      E: Sub-process /usr/bin/dpkg returned an error code (1)

      What should I do to set environment ?

      Reply
      • Zoli1972 on

        Same here, HARSHITA.

        Worse: I can’t install any package since I’ve tried to install this using this tutorial. Can someone help please?

        Zoli

        Reply
        • Zoli1972 on

          EDIT: Maybe a helpful hint, I did a…

          java -version

          …this shows me…

          java version “1.9.0-ea”
          Java(TM) SE Runtime Environment (build 1.9.0-ea-b70)
          Java HotSpot(TM) 64-Bit Server VM (build 1.9.0-ea-b70, mixed mode)

          So the error messages seem to come from an older installation, that I have to remove. But how?

          Zoli

          Reply
    114. Amit on

      Hi,

      I would like to thank you for helping the non techs like myself first. Could you help me with a problem I get? I am using LM 17.1 and trying to do the installation I get the Binary Code License Agreement display at mt terminal window. There is no way to click ok or accept those terms, failing which the installation aborts. Can you tell me a way around, or what am I doing wrong?

      Thanks
      Amit

      Reply
    126. Zoltan on

      Hi,
      I could install java 8 as you wrote, but I still can not set java 8 as a default JRE. And when I would like to add it to the installed JREs I cant find it. Where should it be?
      Thank you!

      Reply
    135. Divine Martins Jr. on

      Wonderful and helpful.
      A written tutorial on how to install using the already downloaded tar.gz file will be helpful too. Thanks

      Reply
      • Tiru on

        Packages can be removed with
        >sudo apt-get –purge remove packageName

        apt-get remove may some times leave behind some files.
        –purge will remove all files.

        Reply
    139. PK on

      Hi,

      I am getting an error stating the following. Please help.

      Cannot add PPA: ‘ppa:webupd8team/java’.
      Please check that the PPA name or format is correct.

      Reply

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