dating advice more than friends - Ubuntu updating java

You just extract those files to a location you want and add them to your path.So the process is the following: Download a export J2SDKDIR=/usr/lib/jvm/oracle_jdk8 export J2REDIR=/usr/lib/jvm/oracle_jdk8/jre export PATH=$PATH:/usr/lib/jvm/oracle_jdk8/bin:/usr/lib/jvm/oracle_jdk8/db/bin:/usr/lib/jvm/oracle_jdk8/jre/bin export JAVA_HOME=/usr/lib/jvm/oracle_jdk8 export DERBY_HOME=/usr/lib/jvm/oracle_jdk8/db su - echo "deb trusty main" | tee /etc/apt/d/webupd8echo "deb-src trusty main" | tee -a /etc/apt/d/webupd8apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys EEA14886 apt-get update apt-get install oracle-java9-installer exit Installing Oracle's Java JDK requires you to accept the Oracle license before the installation begins. If for some reason you need the installation to be automated, you can run the following commands to install without user interaction, useful for an automatic script for example.The current JDK version in the PPA is Oracle Java 7 Update 76 (7u76).

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to install java I have always used the classic way from the terminal. I placed the folder of the JDK on the desk and I set environment variables (PATH, CLASSPATH and JAVA_HOME).

From the terminal, if I type This answer used to describe how to install Oracle Java 7.

Tip: if you're behind a firewall / router that blocks some of the redirects required to download the Oracle Java archive, you can download the JDK archive manually and place it under /var/cache/oracle-jdk7-installer - then, installing the "oracle-java7-installer" package will use the local archive instead of trying it to download it itself.

After the installation finishes, if you wish to see if it was successful, you can run the following command: The package installs all the Java binaries, so you can also try "javac -version" which should return "javac 1.7.0_76" and so on (the "_76" part of the version can be different because I'm constantly updating the PPA with the latest Oracle Java 7 version).

So as an alternative that doesn't have any GTK dependencies and comes with automatic updates too, I've set up an Ubuntu PPA for the latest Oracle Java 7 (JDK).

The PPA should work not only with Ubuntu but also Linux Mint and other Ubuntu-based Linux distributions.

sudo update-alternatives --install "/usr/bin/java" "java" "/usr/lib/jvm/jdk1.7.0_75/bin/java" 1 sudo update-alternatives --install "/usr/bin/javac" "javac" "/usr/lib/jvm/jdk1.7.0_75/bin/javac" 1 sudo update-alternatives --install "/usr/bin/javaws" "javaws" "/usr/lib/jvm/jdk1.7.0_75/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.

The downside with Oracle's JDK is that it won't update with the rest of your system like Open JDK will, so I'd mostly consider it if you're running programs that require it.

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