Oracle Java JDK 7 X64 Howto Install and Getting Started on Linux Debian 7 Wheezy Amd64 KDE4 Easy Visual-Guide

September 3, 2012 | By Regaz.

The Guide shows you Step-by-Step How to Install and Getting-Started with the Oracle-Sun Official Java SE JDK x64 on Debian Linux 7 Wheezy KDE4 64-bit Desktop.

After Installing you will need to Use the update-alternatives Command Tool to Update your System Java to Oracle Java 1.7 JDK.

To the Article Bottom there is a Link for Quick Start with Java JDK 7 Development and also to Install the Java Web-Server Tomcat 7 for Debian.

And this Visual Guide includes the Basic Screenshots of All GUI Steps involved.

The Content give Focus Only to the Essentials Instructions and Commands to make it Easier to Follow.

How to Install Oracle JDK 7 on GNU/Linux Distros

  1. Download Oracle-Sun Java SE JDK:

    Oracle JDK x64 tar.gz

  • Double-Click on Archive and Extract into the /tmp Folder.
    Java JDK 7 tar.gz Extraction 1

  • Open a Terminal Window
    (Press “Enter” to Execute Commands) Debian Open a Terminal Window

  • Relocate JDK 7

    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/

  • 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

    And for the Java Compiler instead:

    sudo update-alternatives --config javac

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

  • Getting-Started and Running with JDK 7:

    Quick Start Tutorial for JDK 7 Development
    Java Dev Quick Start

    • Guides to Installing the Tomcat 7 Server on Debian Linux:

    Install Tomcat7 for Debian
    Link Contains Instructions to Install the Tomcat 7 Java Server for Debian Distro

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