How to Install Oracle Java JDK 7 for Linux Fedora 18 KDE4 32bit Desktop Easy Visual-Guide

February 1, 2013 | By Regaz | Filed in: Uncategorized.

The Guide Shows You Step-by-Step How to Install Oracle-Sun Java JDK 7 32-bit Release for Fedora Linux 18 KDE4 i686 Desktop.

After Installing you will need to Use the update-alternatives Tool to Update your System Java to Sun SE JDK 7.

Especially relevant: at the Same Time I’m also Illustrating here the Easiest Way of Installing the New Downloaded .rpm Packages with Dependencies on Fedora 18 KDE4 Desktop :)

The Screenshots of Installation Correspond to the Install on a Fedora 18 KDE4 Desktop but the Procedure on GNOME, Xfce, Lxde… Should be Just the Same.

Take the Time of Carefully Reading and Executing the Instructions Contained Here and All should Work Like a Breeze.

Java Baloon
  1. Download Oracle-Sun Java SE JDK 7:

    Oracle JDK x86.tar.gz
  2. Double-Click on Archive and Extract into /tmp Linux KDE4 JDK Extraction

  3. Open Terminal Window
    (Press “Enter” to Execute Commands)

    Fedora Linux16-17-18 Kde4 Open Terminal
  4. Relocate Oracle Java JDK

    su 

    If Got “User is Not in Sudoers file” then see: How to Enable sudo

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

    The above command is used to create a jvm directory if not already there.

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

    Reiterate the Execution Permission over the Java binaries

    chmod -R +x /tmp/jdk1.7*/bin

    Finally, Shift the Java contents with

    mv /tmp/jdk1.7* /usr/lib/jvm/
  5. Updating System Java to Oracle JDK

    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

    And for the Java Compiler instead:

    sudo update-alternatives --config javac

    To Switch of Java Version Just Enter the Reference Number on First, Column. :)

  6. Optionally Set Java Environment Variable.

    su <myUser>
    nano $HOME/.bashrc

    Append:

    export JAVA_HOME=/usr/lib/jvm/jdk1.<X.Y_uZ>

    Ctrl+x to Save & Exit from nano :)

    source $HOME/.bashrc
  7. How to Install Oracle Java Browser Plug-In:

    Install Oracle Java Firefox PlugIn

Guides to Installing the Tomcat 7 Server on Linux:

How to Install Tomcat 7 on Linux

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