How to install Oracle JDK 7 on Ubuntu 18.04 Bionic LTS

February 22nd, 2018 by thelinuxevangelist

Oracle JDK 7 Install Ubuntu 18.04 Bionic

You are Welcome! This Tutorial Shows You Step-by-Step How-to Install Oracle-Sun Java SE JDK 7 for Ubuntu 18.04 Bionic LTS 32/64bit GNU/Linux Desktop/Server.

And the Oracle Java JDK 7 for Ubuntu Bionic includes tools useful for developing and testing programs written in the Java programming language and running on the Java platform.

Moreover, included inside this guide you find instructions on How to Getting-Started with Java JDK 7 Development on Ubuntu and Install Eclipse Java IDE.

Especially relevant: to SetUp Oracle JDK 7 on Ubuntu you will need to Use the update-alternatives Tool to Update your System Java to Oracle JDK 1.7.

Finally, the Contents and Details of How-to Install Oracle JDK 7+ on Ubuntu 18.04 Bionic are Expressly Essentials to Give Focus Only to the Essentials Instructions and Commands and Make the Tut Easier to Understand ;)

Install Oracle JDK 7 on Ubuntu 18.04 Bionic - Featured
  1. First Open a Terminal Shell emulator window
    Ctrl+Alt+t on Desktop
    (Press “Enter” to Execute Commands)

    Install Oracle JDK 7 on Ubuntu 18.04 Bionic - Open Terminal Shell Emulator
  2. Download Oracle Java SE JDK for Linux:

    Oracle JDK i586/x8664 tar.gz
  3. Then Double-Click on Archive and Extract into /tmp
    Or from Shell:

    tar xvzf ~/Downloads/jdk-7*.tar.gz -C /tmp/

    Install Oracle JDK 7 on Ubuntu 18.04 Bionic - Extraction Path

  4. Next Relocate Oracle JDK 7 Contents
    Login as the SuperUser:

    sudo su

    If Got “User is Not in Sudoers file” then Look: Solution
    To Make a jvm Directory Only if Not already there
    (You can directly copy & paste the commands into the terminal)

    if [ ! -d "/usr/lib/jvm" ]; then mkdir /usr/lib/jvm; fi

    Set the root superUser as holder

    chown -R root:root /tmp/jdk1.7*

    Then to shift the Oracle JDK 7 contents

    mv /tmp/jdk1.7* /usr/lib/jvm/
  5. Installing Oracle Java JDK 7
    update-alternatives --install \
    /usr/bin/java java /usr/lib/jvm/jdk1.7*/bin/java 1065
    update-alternatives --install \
    /usr/bin/javac javac /usr/lib/jvm/jdk1.7*/bin/javac 1065
    update-alternatives --install \
    /usr/bin/jar jar /usr/lib/jvm/jdk1.7*/bin/jar 1065
    update-alternatives --install \
    /usr/bin/javaws javaws /usr/lib/jvm/jdk1.7*/bin/javaws 1065

    Checking or Setting the System Java Version in Use

    update-alternatives --config java

    To Switch of Java Version Just Enter the Selection Number on First Column. :)
    Last Achieve the SuperUser session:

  6. Setting JAVA_HOME User Environment Variable (Optional)

    Edit the Bash environment Configuration file:

    nano $HOME/.bashrc


    export JAVA_HOME=/usr/lib/jvm/jdk1.7[uX]

    Replace the [uX] Looking for the Installed Java 7 Version with:

    ls /usr/lib/jvm/

    Ctr+x to Save & Exit from nano Editor :)
    Next to Load the New Bash Environment:

  7. Testing the JDK 7 Installation:

    java -version
  8. Getting-Started with Java Development:

    Oracle Java Dev Getting-Started Guide
  9. How-to Install Latest Eclipse for Java Developers on Ubuntu:
    The Linked Guide Include Tutorials for Installing Latest Eclipse Java on Ubuntu.

    Now Thanks to Oracle-Sun Corporation You are Able to Successfully Start with Java JDK 7 Use & Development.

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