The Guide shows you Step-by-Step How to Install Oracle-Sun Java JDK 7 x64 Release for Fedora 17 GNOME3 x8664 Desktop.
After Installing you will need to Use the update-alternatives Tool to Update your System Java to Sun SE JDK 7.
The Screenshots of Installation Correspond to the Install on a Fedora 17 GNOME Desktop but the Procedure on KDE, XFCE… Should be Near Identical.
Following the Easiest and Practicable Way I have Expressly Excluded the Use of Terminal Commands here.
So Take the Time of Carefully Reading and Executing the Instructions Contained Here and All should Work Like a Breeze :)
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Download Oracle-Sun Java SE JDK 7:
Sun JDK 7 Linux x64.rpm -
Open Terminal Window
(Press “Enter” to Execute Commands)
In case first see: Terminal QuickStart Guide.
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Installing Oracle-Sun Java JDK
su
If Got “User is Not in Sudoers file” then see: How to Enable sudo
cd /[path2]/jdk*.rpm
sudo yum install jdk*.rpm
YUM will Automatically Manage and Download the Eventual Dependencies Also for Local Packages :)
You Can Safely Ignore Eventual Installation Errors: “Could not open input file…”.
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Updating System Java to Oracle JDK
update-alternatives --install /usr/bin/java java /usr/java/jdk1.7*/bin/java 1065
update-alternatives --install /usr/bin/javac javac /usr/java/jdk1.7*/bin/javac 1065
update-alternatives --install /usr/bin/jar jar /usr/java/jdk1.7*/bin/jar 1065
update-alternatives --install /usr/bin/javaws javaws /usr/java/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. :)
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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
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How to Install Oracle Java Browser Plug-In:
Guides to Installing the Tomcat 7 Server on Linux: