This time I show you two different ways to install and management Java in Ubuntu: manually and using PPA repository. The manual part of this tutorial also works fine for any linux. It’s recomended for professional installations.
Installing Oracle JDK/JRE using PPA (Recommended for my tutorials)
Open terminal and add webupd8team PPA repository:
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sudo add-apt-repository ppa:webupd8team/java sudo apt-get update |
Find proper JDK:
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apt-cache search oracle-java #or #apt-cache search oracle- |
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oracle-jdk7-installer - Oracle JDK7 Installer meta package oracle-java7-installer - Oracle Java(TM) Development Kit (JDK) 7 oracle-java6-installer - Oracle Java(TM) Development Kit (JDK) 6 oracle-java8-installer - Oracle Java(TM) Development Kit (JDK) 8 oracle-java7-set-default - Set Oracle JDK 7 as default Java oracle-java6-set-default - Set Oracle JDK 6 as default Java oracle-java8-set-default - Set Oracle JDK 8 as default Java oracle-java7-unlimited-jce-policy - Unlimited JCE Policy for Oracle Java 7 oracle-java8-unlimited-jce-policy - Unlimited JCE Policy for Oracle Java 8 oracle-java9-installer - Oracle Java(TM) Development Kit (JDK) 9 oracle-java9-set-default - Set Oracle JDK 9 as default Java oracle-java9-unlimited-jce-policy - Unlimited JCE Policy for Oracle Java 9 |
Install chosen version:
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sudo apt-get install <package_name> #ie JDK 1.7 sudo apt-get install oracle-java7-installer |
Default JDK directory
The default webupd8team Oracle JRE/JDK installation directory is:
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/usr/lib/jvm/ |
Switching between Java versions
If you install more than one oracle-java<version>-installer, you can switch between them using one of:
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#oracle-java7-set-default - Set Oracle JDK 7 as default Java #oracle-java6-set-default - Set Oracle JDK 6 as default Java #oracle-java8-set-default - Set Oracle JDK 8 as default Java sudo apt-get install oracle-java7-set-default |
Oracle JDK/JRE manual installation (Recommended for professionals)
Download proper JDK/JRE version from Oracle Downloads (tar.gz version) and unzip archive to ~/Tools directory.
Oracle asks you to accept licence. To download JDK with accept licence automatically just use wget with additional header:
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mkdir Tools cd Tools #Downloading #wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" <java_dovnload_link> wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u91-b14/jdk-8u91-linux-x64.tar.gz #Unzipping #tar -xvf <package_name>.gz tar -xvf jdk-8u91-linux-i586.tar.gz |
Setting default java
Create symbolic link to selected java version:
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sudo ln -s <HOME_PATH>/Tools/jdk1.8.0_91/bin/java /usr/bin/java |
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