![]() ![]() The output will look like the following There are 2 choices for the alternative java (providing /usr/bin/java). To be able to change the standard version, use the tool update-alternativesas shown below: sudo update-alternatives -config java If you have multiple versions of Java installed on the system, To check the default Java version you can use the following command: java -version OpenJDK 64-Bit Server VM (build 25.252-b09, mixed mode) Set Default Java Version on Ubuntu 20.04 The output will look like this: openjdk version "1.8.0_252" Verify the installation by checking the Java version: java -version If your application runs on Java 8, you can install it by typing the following command: sudo apt update Java 8, the previous version of Java for LTS, is still widely used. OpenJDK 64-Bit Server VM (build 11.0.7+10-post-Ubuntu-3ubuntu1, mixed mode, sharing)Īt this point, the Java installation on the Ubuntu system was successful. OpenJDK Runtime Environment (build 11.0.7+10-post-Ubuntu-3ubuntu1) The output will look like this: openjdk version "11.0.7" For minimal Java runtime, install the package openjdk-11-jdk-headless.Īfter the installation is complete, verify it by checking the Java version: java -version If you only need the JRE, install the package openjdk-11-jre. Run the following command as a user with sudo or root privileges to update the packages index and install the OpenJDK 11 package: sudo apt update ![]() It is also the default Java development and runtime on Ubuntu 20.04. Install Java OpenJDK 11 di Ubuntu 20.04Īt the time of writing, Java 11 is the long-term supported (LTS) version of Java. Some Java-based applications may require a specific version of Java, so as a user, it is mandatory to read the application documentation. If you are not sure which Java package to install, a general recommendation is to install the default version of Java, which is the OpenJDK version (JDK 11). The JDK includes the JRE and the development / debugging tools and libraries needed to build Java applications. A JRE consists of a Java virtual machine (JVM), classes, and binaries that allow running Java programs. The Ubuntu 20.04 default repository includes two OpenJDK packages, the Java Runtime Environment (JRE) and the Java Development Kit (JDK). The license Oracle Java only permits non-commercial use of the software, such as personal use and development use. OpenJDK and Oracle Java are the two main implementations of Java, with almost no difference between them except that Oracle Java has some additional commercial features. ![]() There are several different Java implementations. In this guide, we will learn how to install Java on Ubuntu 20.04. We can find applications developed in Java on your laptop, cell phone and game console. Java runs on all operating systems and devices. How to install the NVIDIA drivers on Ubuntu 18.Java is one of the most popular programming languages used to build various types of applications and systems.How to Install Adobe Acrobat Reader on Ubuntu 20.04 Focal Fossa Linux.Set Kali root password and enable root login.How to change from default to alternative Python version on Debian Linux.Netplan static IP on Ubuntu configuration.How to enable/disable firewall on Ubuntu 18.04 Bionic Beaver Linux.How to install Tweak Tool on Ubuntu 20.04 LTS Focal Fossa Linux.Linux IP forwarding – How to Disable/Enable.How to use bash array in a shell script.AMD Radeon Ubuntu 20.04 Driver Installation.How to install missing ifconfig command on Debian Linux. ![]() Ubuntu 20.04 Remote Desktop Access from Windows 10.How to find my IP address on Ubuntu 20.04 Focal Fossa Linux.How to install the NVIDIA drivers on Ubuntu 20.04 Focal Fossa Linux.Unless you already know which version of OpenJDK you wish to install, then as a first step perform a search of all available packages: For example the OpenJDK versions 8,11,13 and 14 are available from the standard Ubuntu repository. How to install OpenJDK Java on Ubuntu 20.04 LTS Focal Fossa step by step instructionsīy default the Ubuntu 20.04 LTS Focal Fossa Linux offers multiple versions of Java OpenJDK. $ – requires given linux commands to be executed as a regular non-privileged user # – requires given linux commands to be executed with root privileges either directly as a root user or by use of sudo command Privileged access to your Linux system as root or via the sudo command. Requirements, Conventions or Software Version Used Java on Ubuntu 20.04 LTS Focal Fossa Software Requirements and Conventions Used Software Requirements and Linux Command Line Conventions Category ![]()
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