How to Install Oracle Java JDK7 on Linux Debian 7 Wheezy Lxde 32bit Easy Visual-Guide

September 15, 2012 | By Duchateaux.

The Tutorial shows you in Easy Steps How to Install and Getting-Started with the Oracle-Sun Official Java JDK on Debian Linux 7 Wheezy Lxde i386 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.

  1. Download Oracel-Sun Java SE JDK:

    Oracle JDK i586 tar.gz
  2. Find and Double-Click on the tar.gz Archive Java JDK 7 tar.gz Extraction 1

    Extract it Into the /tmp Folder.

    Java JDK 7 tar.gz Extraction Path

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

    Debian Linux Wheezy Lxde Open Terminal

  4. 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/

  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

    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. Getting-Started and Running with JDK 7:

    Quick Start Tutorial for JDK 7 Development

Guides to Installing the Tomcat 7 Server on Linux:


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