You can follow this detailed procedure:
Contact:
http://www.oracle.com/technetwork/java/javase/downloads/index.html http://hendrelouw73.wordpress.com/2012/06/01/how-to-install-oracle-java-6-0 -32-on-ubuntu-12-04-linux /
Download:
Download the following files from http://www.oracle.com/technetwork/java/javase/downloads/index.html JDK: jdk-6u37-linux-i586.bin (or jdk-6u37-linux-x64.bin for 64- bit system) JRE: jre-6u37-linux-i586.bin
Installation Procedure:
Make sure the installation folder exists:
$ sudo mkdir -p / usr / lib / jvm
cd to a folder containing jre and jdk bin files
Move the downloaded files to the installation folder
$ sudo mv jdk-6u37-linux-i586.bin / usr / lib / jvm
$ sudo mv jdk-6u37-linux-x64.bin / usr / lib / jvm (for a 64-bit system)
$ sudo mv jre-6u37-linux-i586.bin / usr / lib / jvm (only if you install only JRE)
$ cd /usr/lib/jvm
Make executable file downloaded executables
$ sudo chmod u + x jdk-6u37-linux-i586.bin
$ sudo chmod u + x jre-6u37-linux-i586.bin (only if you install only JRE)
Extract compressed binaries:
$ sudo. / jdk-6u37-linux-i586.bin
$ sudo. / jre-6u37-linux-i586.bin (only if you install only JRE)
Tell Ubuntu Where Your Java Installation Is Located
$ sudo update-alternatives --install "/ usr / bin / javac" "javac" "/usr/lib/jvm/jdk1.6.0_37/bin/javac" 1
$ sudo update-alternatives --install "/ usr / bin / java" "java" "/usr/lib/jvm/jdk1.6.0_37/jre/bin/java" 1
$ sudo update-alternatives --install "/ usr / bin / javaws" "javaws" "/usr/lib/jvm/jdk1.6.0_37/bin/javaws" 1
$ sudo update-alternatives --install "/ usr / bin / java" "java" "/usr/lib/jvm/jre1.6.0_37/bin/java" 1 (only if you install only JRE)
Tell Ubuntu that you install Java by default:
$ sudo update-alternatives --set javac / usr / lib / jvm / jdk1.6.0_37 / bin / javac
$ sudo update-alternatives --set java / usr / lib / jvm / jdk1.6.0_37 / jre / bin / java
$ sudo update-alternatives --set javaws / usr / lib / jvm / jdk1.6.0_37 / bin / javaws
$ sudo update-alternatives --set java / usr / lib / jvm / jre1.6.0_37 / bin / java (only if you install only JRE)
Reboot system-wide PATH
$. / etc / profile
Reboot Ubuntu Versioning:
$ java -version
$ javac -version
$ javaws -version
You should be able to see:
java version "1.6.0_37" javac 1.6.0_37
JAVA_HOME setting:
Add the following code to the ~ / .bashrc file:
# Setting JAVA_HOME manually JAVA_HOME=/usr/lib/jvm/jdk1.6.0_37 export PATH=$PATH:$JAVA_HOME
Now open a new terminal:
$ echo $JAVA_HOME => /usr/lib/jvm/jdk1.6.0_37/bin
Installing and registering the Java plugin for Linux:
Refer to: http://www.oracle.com/technetwork/java/javase/manual-plugin-install-linux-136395.html When you install the Java platform, the Java plug-in file is included as part of this installation. If you want to use Java in Firefox, you need to manually create a symbolic link from the plugin file in the release to one of the places that Firefox expects. You can create a symbolic link in your home directory under ~ / .mozilla / plugins. The Linux plugin file is here: /lib/i386/libnpjp2.so
To install the Java plugin, follow these steps:
- Exit Firefox.
- $ cd ~ / .mozilla / plugins /
Uninstall all previous Java Plugin installations. Only one Java plugin can be used at a time. If you want to use another plugin or version of the plugin, delete the symbolic links with any other versions and create a new symbolic link to the new one. Delete existing symbolic links (or move them to another directory):
$ rm libnpj *
Create a symbolic link to the Java plugin in the Firefox plugin directory.
$ ln -s / usr / lib / jvm / jdk1.6.0_37 / jre / lib / i386 / libnpjp2.so ~ / .mozilla / plugins /
$ ln -s / usr / lib / jvm / jdk1.6.0_37 / jre / lib / amd64 / libnpjp2.so ~ / .mozilla / plugins / (in the case of a 64-bit system)
$ ln -s / usr / lib / jvm / jre1.6.0_37 / lib / i386 / libnpjp2.so ~ / .mozilla / plugins / (only if you install only JRE)
Launch the Firefox browser. Testing the installed plugin: Enter around: plugins in the location bar to confirm the loading of the Java plugin. You can also click the Tools menu to confirm that there is a Java console.