how Install Java JDK in Ubuntu 14.04 : the manual way
| | There is a similar answer on how to install JRE 8. Install Java JDK The manual way -
Download the 32bit or 64bit Linux "compressed binary file" - it has a ".tar.gz" file extension. -
Uncompress it tar -xvf jdk-8-linux-i586.tar.gz (32bit)
tar -xvf jdk-8-linux-x64.tar.gz (64bit)
JDK 8 package is extracted into ./jdk1.8.0 directory. N.B. check carefully this folder name since Oracle seem to change this occasionally with each update. -
Now move the JDK 8 directory to /usr/lib sudo mkdir -p /usr/lib/jvm sudo mv ./jdk1.8.0 /usr/lib/jvm/ -
Now run sudo update-alternatives --install "/usr/bin/java" "java" "/usr/lib/jvm/jdk1.8.0/bin/java" 1 sudo update-alternatives --install "/usr/bin/javac" "javac" "/usr/lib/jvm/jdk1.8.0/bin/javac" 1 sudo update-alternatives --install "/usr/bin/javaws" "javaws" "/usr/lib/jvm/jdk1.8.0/bin/javaws" 1 This will assign Oracle JDK a priority of 1, which means that installing other JDKs will replace it as the default. Be sure to use a higher priority if you want Oracle JDK to remain the default. -
Correct the file ownership and the permissions of the executables: sudo chmod a+x /usr/bin/java sudo chmod a+x /usr/bin/javac sudo chmod a+x /usr/bin/javaws sudo chown -R root:root /usr/lib/jvm/jdk1.8.0 N.B. remember - Java JDK has many more executables that you can similarly install as above. java, javac, javaws are probably the most frequently required.
This answer lists the other executables available. -
Run sudo update-alternatives --config java You will see output similar one below - choose the number of jdk1.8.0 - for example 3 in this list (unless you have have never installed Java installed in your computer in which case a sentence saying "There is nothing to configure" will appear): $ sudo update-alternatives --config java There are 3 choices for the alternative java (providing /usr/bin/java).
|
to enable Mozilla Firefox plugin:
32 bit: ln -s /usr/lib/jvm/jdk1.8.0/jre/lib/i386/libnpjp2.so ~/.mozilla/plugins/ 64 bit: ln -s /usr/lib/jvm/jdk1.8.0/jre/lib/amd64/libnpjp2.so ~/.mozilla/plugins/
N.B. you can link the plugin (libnpjp2.so) to /usr/lib/firefox/plugins/ for a system wide installation, For Ubuntu 13.10 path to plugin directory is /usr/lib/firefox/browser/plugins/
Depending on your configuration, you might need to update the apparmor profile for firefox (or other browsers) in /etc/apparmor.d/abstractions/ubuntu-browsers.d/java
read more and completely at
http://askubuntu.com/questions/56104/how-can-i-install-sun-oracles-proprietary-java-jdk-6-7-8-or-jre/55960#55960
No comments:
Post a Comment