How to Install JRE in Ubuntu 14.04 Check Previous Installation of Java in Ubuntu 14.04 Use the following command after opening a terminal. “Java –version” If you don’t have Java installed on your system, you will see the following message. Install Java in Ubuntu 14.04 You will have to decide which version of Java you are going to install. When you have made up your mind, launch the terminal and use the following command to install JRE. “sudo apt-get install default-jre” Install OpenJDK in Ubuntu Again open the terminal and install OpenJDK Java Development Kit. “sudo apt-get install default-jdk” If you are specifically looking forward to install Java 6 or Java 7 then you need to use “openjdk-7-jdk/openjdk-6-jdk”.
However, you must install “openjdk-7-jre/openjdk-6-jdk” before it. Install Oracle JDK in Ubuntu 14.04 You need to use the following commands for installing the Oracle JDK in Ubuntu.
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These commands will download plenty of files. You must have fast and reliable internet connection to download these files quickly. “sudo add-apt-repository ppa:webupd8team/java. Sudo apt-get install oracle-java8-installer sudo apt-get install oracle-java8-set-default” If you desire to install Java 7 (Java 1.7), simply replace java8 with java7 in the aforementioned command. Managing Multiple Java Versions When you have installed multiple Java versions on Ubuntu 14.04, you can easily manage them by using some commands. How to identify fake drivers license in the philippines. Use the following command in terminal to display the available Java versions on your Linux OS. “sudo update-alternatives –config java” The output will be something like this if you have two versions of Java installed on your system.
You can easily choose the number as the default version of Java. This can also be performed for the Java compiler (javac). “sudo update-alternatives –config javac” This article highlighted the convenient method to install Java in Ubuntu. This will open up the whole world of applications and programs that require Java for their execution. You may explore some more commands for installing and managing Java for your Linux applications.
Referring to question, How to install 'Open JDK' (Java developement kit) in Ubuntu (Linux)?. Open Terminal from Application Dash or press Ctrl+ Alt+ T. Update repository: sudo add-apt-repository ppa:openjdk-r/ppa # only Ubuntu 17.4 and earlier sudo apt-get update. Run the following command in Terminal: sudo apt-get install openjdk-8-jdk sudo apt-get install openjdk-8-source #this is optional, the jdk source code. Type commandline as below.
Apt-cache search jdk (Note: openjdk-8-jdk is symbolically used here. You can choose the JDK version as per your requirement.). For 'JAVAHOME' (Environment Variable) type command as shown below, in 'Terminal' using your installation path. Export JAVAHOME=/usr/lib/jvm/java-8-openjdk (Note: '/usr/lib/jvm/java-8-openjdk' is symbolically used here just for demostration. You should use your path as per your installation.). For 'PATH' (Environment Variable) type command as shown below, in 'Terminal' using your installation path.
Export PATH=$PATH:/usr/lib/jvm/java-8-openjdk/bin (Note: '/usr/lib/jvm/java-8-openjdk' is symbolically used here just for demostration. You should use your path as per your installation.). Check for 'open jdk' installation, just type command in 'Terminal' as shown below javac -version. You can install Oracle's JDK 1.7 fairly easily too; as an example this is how to install JDK 1.7.013;. Download the JDK. The download to the newest version is always linked from.
Install Java Jdk Linux Mint
As root, do; cd /usr/local tar xzf As your normal user, add or change these two lines in your /.profile to point to the installation; export JAVAHOME=/usr/local/jdk1.7.013 export PATH=$PATH:$JAVAHOME/bin If it's an update, you may also want to remove the old java installation directory in /usr/local. Log out and in again (or do. /.profile), and everything should just work. The downside with Oracle's JDK is that it won't update with the rest of your system like OpenJDK will, so I'd mostly consider it if you're running programs that require it. In case you have already downloaded the ZIP file follow these steps.
Run the following command to unzip your file. Tar -xvf /Downloads/jdk-7u3-linux-i586.tar.gz sudo mkdir -p /usr/lib/jvm/jdk1.7.0 sudo mv jdk1.7.003/. /usr/lib/jvm/jdk1.7.0/ sudo update-alternatives -install '/usr/bin/java' 'java' '/usr/lib/jvm/jdk1.7.0/bin/java' 1 sudo update-alternatives -install '/usr/bin/javac' 'javac' '/usr/lib/jvm/jdk1.7.0/bin/javac' 1 sudo update-alternatives -install '/usr/bin/javaws' 'javaws' '/usr/lib/jvm/jdk1.7.0/bin/javaws' 1 After installation is complete, set environment variables as follows. Edit the system path in file /etc/profile: sudo gedit /etc/profile Add the following lines at the end. JAVAHOME=/usr/lib/jvm/jdk1.7.0 PATH=$PATH:$HOME/bin:$JAVAHOME/bin export JAVAHOME export PATH Source.
OpenJDK is OK for the most cases, but Oracle JDK can be required for some bank client applications (my case) - I can't use OpenJDK. I'm surprised that I don't see any answer with the default method (repository without external PPAs) in Ubuntu 12.10+ for Oracle's JDK - I will try to describe it. Install: sudo apt-get install java-package. Download Oracle JDK from. Make a Debian package from the downloaded.tar.gz archive: make-jpkg jdk-YOURVERSION-linux-PLATFORM.tar.gz This command will produce a.deb package. Install the package in your favourite way (for example, sudo dpkg -i oracle-java8-jdk8u40amd64.deb) It's the officially supported way from Debian developers for installing Oracle JDK, and I suppose it's very simple. Installing Java 8 on Ubuntu First you need to add webupd8team Java PPA repository in your system and install Oracle Java 8 using following set of commands.
$ sudo add-apt-repository ppa:webupd8team/java $ sudo apt-get update $ sudo apt-get install oracle-java8-installer Verify Installed Java Version After successfully installing Oracle Java using the above steps, verify the installed version using the following command. $ java -version java version '1.8.077' Java(TM) SE Runtime Environment (build 1.8.077-b03) Java HotSpot(TM) 64-Bit Server VM (build 25.77-b03, mixed mode) Configuring the Java environment In Webupd8 ppa repository also providing a package to set environment variables, Install this package using following command.
$ sudo apt-get install oracle-java8-set-default. For Ubuntu 10.04 LTS, the sun-java6 packages have been dropped from the Multiverse section of the Ubuntu archive. It is recommended that you use openjdk-6 instead. If you can not switch from the proprietary Sun JDK/JRE to OpenJDK, you can install sun-java6 packages from the Canonical Partner Repository. You can configure your system to use this repository via command-line: sudo add-apt-repository 'deb lucid partner' sudo apt-get update sudo apt-get install sun-java6-jre sun-java6-plugin sudo update-alternatives -config java For Ubuntu 10.10, the sun-java6 packages have been dropped from the Multiverse section of the Ubuntu archive. It is recommended that you use openjdk-6 instead.
Install Java Jdk On Linux
If you can not switch from the proprietary Sun JDK/JRE to OpenJDK, you can install sun-java6 packages from the Canonical Partner Repository. You can configure your system to use this repository via command-line: sudo add-apt-repository 'deb maverick partner' sudo apt-get update sudo apt-get install sun-java6-jre sun-java6-plugin sudo update-alternatives -config java. Using a PPA You can use (this will download the required files from Oracle and install JDK 8): sudo apt-add-repository ppa:webupd8team/java sudo apt-get update sudo apt-get install oracle-java8-installer Also ensure your JAVAHOME variable has been set to: /usr/lib/jvm/java-8-oracle Manual install The tar.gz provided by Oracle don't have an actual installation process. You just extract those files to a location you want and add them to your path. So the process is the following: Download a.tar.gz from (here I will be using jdk-8u20-linux-x64.tar.gz); Extract it to somewhere; Move the extracted folder to /usr/lib/jvm.
Install Java Jdk On Linux Mint
This is not required but it is the place where Java runtime software is installed sudo mv /path/to/jdk1.8.020 /usr/lib/jvm/oraclejdk8 Create a file /etc/profile.d/oraclejdk.sh with the following content (adapt the paths to reflect the path where you stored your JDK): export J2SDKDIR=/usr/lib/jvm/oraclejdk8 export J2REDIR=/usr/lib/jvm/oraclejdk8/jre export PATH=$PATH:/usr/lib/jvm/oraclejdk8/bin:/usr/lib/jvm/oraclejdk8/db/bin:/usr/lib/jvm/oraclejdk8/jre/bin export JAVAHOME=/usr/lib/jvm/oraclejdk8 export DERBYHOME=/usr/lib/jvm/oraclejdk8/db Done! Those paths will only be recognized after you logout or restart, so if you want to use them right away run source /etc/profile.d/oraclejdk.sh.