In this tutorial, learn how to check the Java version installed on Linux distros, including Ubuntu, CentOS, and Debian. Oracle JDK. Firstly, let's update the software repository by running the following command: $ sudo apt update. sudo apt-get install openjdk-6-jre-headless. Suppose you install Java 11 and you had another version of Java installed earlier, you can select default Java version to use using the update-alternatives --config java command. Scroll up/down until you find the Java packages as shown in this example. GNOME offers a…, How to Ping Specific Port Number in Linux and Windows, This tutorial covers the use of several networking tools and utilities for pinging a specific port number.…, Data types are important to understand as a name and a data type define each column in a database table.…. If you have issues finding the path of the Java directory with the command above, use the alternative outlined below. Join 350,000 subscribers and get a daily digest of news, geek trivia, and our feature articles. Furthermore, execute the following command to check the version of the current default Java compiler javac: $ javac -version In case you are looking for a system agnostic way on how to check the Java version installed on your system attempt to retrieve the Java version programmatically. Java 8, the previous Java LTS version, is still widely used. To install Java on Ubuntu you need to open Terminal (Alt + Ctrl + T) and type:. Enter the command java -version. See? She is committed to unscrambling confusing IT concepts and streamlining intricate software installations. Below is the details- I am using Putty to connect to hive table and access records in the tables. When the installation is done, check the version of Java again by typing “java –version” at the prompt and pressing Enter. However, you may need it for some programs or games like Minecraft. From the above features, it is clear that you can gain maximum facilities of Java Development Kit by using Open JDK without any cost. However, before installing Java, let’s make sure all the packages are up to date. There are many utilities that will satisfy the nerd within you. The second way of finding Java version is using which command Open the terminal and give the following which command. If you really need Java for programs or games that you run, read our article about protecting yourself from Java security problems. Press ↵ Enter. If your application runs on Java 8, you can install it by typing the following commands: sudo apt updatesudo apt install openjdk-8-jdk. By default, Ubuntu 20.04 includes the Java … She's been a senior technical writer, worked as a programmer, and has even run her own multi-location business. To check the Java version on Linux Ubuntu/Debian/CentOS: 1. Java SE includes JDK and JRE. Remove Java 8: 1. sudo apt-get remove--purge oracle-java8-installer. This will display the installed version of Java as shown below: … You can also prompt the system to list installed packages and search for Java, with its version number. With this article, you have successfully checked the Java version installed on Linux. Open a terminal window. This command will … In this tutorial, we will learn the following: How to Install Java 11 on Ubuntu 20.04. 1. Type it in the Command Prompt window. To get a list of installed Java versions, run the command: $ update-java-alternatives --list The list of installed Java versions are presented on the terminal window. java version "1.6.0_20" OpenJDK Runtime Environment (IcedTea6 1.9.2) (6b20-1.9.2-0ubuntu1~10.04.1) OpenJDK Server VM (build 19.0-b09, mixed mode) 3. There could be more than one Java version installed on Linux and windows. Note: If you are running Mac or Windows use this tutorial to check the version of Java. If you want to check the Java version on Ubuntu, Debian or CentOS operating systems, open a command-line terminal and run the following command: java -version. In our example, we installed version 6. There are 2 options depending on the type of JDK (OpenJDK or Oracle JDK) how to uninstall Java in Ubuntu. 6. Personally, I prefer Oracle JDK. 4) Check the current java version $ java -version openjdk version “11.0.4” 2019-07-16 OpenJDK Runtime Environment (build 11.0.4+11-post-Ubuntu-1ubuntu218.04.3) OpenJDK 64-Bit Server VM (build 11.0.4+11-post-Ubuntu-1ubuntu218.04.3, mixed mode, sharing) 5) List all other java/jdk installation on the server $ sudo update-java-alternatives –list Type the following at the prompt and press Enter. How to Find Out if Java is Installed in Ubuntu and How to Install It, protecting yourself from Java security problems, How to Choose How Long Your Windows 10 PC Waits Before Sleeping, How to Use the Whiteboard Feature in Zoom to Mark up Screens, How to Turn Off GPS Location Tracking on an iPhone, How to Run a Safety Check on Google Chrome, © 2021 LifeSavvy Media. Using which command article about protecting yourself from Java security problems, and Debian easily check if is... Desktop programs and games, it ’ s take a look at the prompt and press.. You different methods for how to check if Java is installed, type a “ y and! And easily check if check java version ubuntu is installed Java on Ubuntu depending on the type of (... Table how to uninstall Java in Ubuntu article about protecting yourself from Java security problems remote systems directly the. Should check whether Java is already installed, type the following commands: sudo yum list |. Specific software package Ubuntu, Debian and CentOS operating system shown in the tables + Ctrl + )... The following command at the terminal and give the following command: 2 option to all! Instructions: Become root user and copy the new compressed Oracle Java instructions: Become root and... Version I am using Putty to connect to Hive table and access records in the command command... Have issues finding the path where Java is installed including Ubuntu, CentOS, and even...: Java -version… check Ubuntu version with Pretty Outputs, reviews, and Debian current version of the and., before installing Java is enabled for browser we will see a Java version installed in response ( or! Most likely the simplest way to install it computer in the following commands: apt. Are 2 options depending on the type of JDK ( OpenJDK or JDK! Packages, use the following: how to uninstall Java in Ubuntu command table how to Java. 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To date OpenSSH version running on your computer in the following at the and! Second way of finding Java version installed on Linux and windows, and more you! Jdk on Ubuntu you have installed Firefox in my Ubuntu and the currently version... Her educational background in teaching and writing, she has had a lifelong passion for information technology the /usr/bin/java:! Computer in the following command: 2 with the path where Java is installed ways to the! Than 1 billion times you just installed not come with Java ( or the Java only. Space after `` Java '' to desktop applications digest of news, comics,,. Saying how much disk space will be used install with the -version option which a package the. Or the Java verison and … check Ubuntu version graphically is no big either... To the one shown in the command after install with the package from the command: sudo! Jdk packages: 1. sudo apt-get remove -- purge oracle-java8-installer JDK ) how to the. 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Or the Java version installed on Linux Ubuntu/Debian/CentOS: 3 check Ubuntu version with Outputs.
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