How-to install Oracle JDK 7 on Ubuntu 14.04 Trusty LTS 32/64bit Easy Visual-Guide

February 27th, 2014 by thelinuxevangelist

Install Oracle JDK 7 on Ubuntu 14.04 Trusty Tahr LTS 32/64bit




The Guide Shows You in Easy-Steps How-to Install and Getting-Started with the Latest Oracle-Sun Official Java SE JDK 7 for Ubuntu Linux 14.04 Trusty Tahr i386/amd64 Desktop/Server.

To SetUp Oracle JDK you will need to Use the update-alternatives Tool to Update your System Java to 1.7 JDK.

To the How-to Install Oracle JDK 7 on Ubuntu 14.04 Trusty Bottom there is a Link for Quick Start with Java JDK 7 Development and also to Install the Latest Eclipse Java IDE for Ubuntu Linux.

Furthermore to Make the Process Easier to Visualize the Post Includes the Basic Screenshots of the Steps Involved.

The Content and Details of How-to Install Oracle JDK 7 on Ubuntu 14.04 Trusty are Expressly Reduced to Give Focus Only to the Essentials Instructions and Commands and Make the Tut Easier to Understand ;)

Install Oracle JDK 7 on Ubuntu 14.04 Trusty - Featured
  1. Download Oracle Java SE JDK for Linux:

    Oracle JDK i586/x8664 tar.gz
  2. Double-Click on the tar.gz Archive and Extract into
    /tmp

    Or from Shell:

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

    Java JDK 7 tar.gz Extraction Path

  3. Open a Terminal Window
    (Press “Enter” to Execute Commands) Install Oracle JDK 7 on Ubuntu 14.04 Trusty Open Terminal Window
  4. Relocate JDK 7
    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
    with

    update-alternatives --config java

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

    exit
  6. Setting JAVA_HOME User Environment Variable (Optional)

    su [myUserName]

    Edit the Bash environment Configuration file

    nano $HOME/.bashrc

    Append:

    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 :)
    Load New Bash Config:

    bash
  7. Testing New Java JDK 7 Installation:

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

    Getting-Started Quickly with JDK
  9. How-to Install Latest Eclipse for Java Developers on Ubuntu:

    Install Eclipse Java for Ubuntu

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

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