Note that you do not need to remove and default OpenJDK installations. However, it has been around for a long time and is widely used in larger communities. The PPA is untrusted, in the short term, has no affiliation with the Ubuntu core team. An alternative method is to add the ppa:openjdk-r/ppa repository, which is always up to date and may see updates deployed quicker than Ubuntu’s default archives. Ubuntu 22.04 repository often has the latest up-to-date and secure versions. Note that this will remove any unrequited leftover dependencies and thoroughly wipe the installation and data as much as possible from your system. However, you can remove them separately or altogether if you no longer require JDK or JRE.Įxample: sudo apt-get autoremove openjdk-11-jre openjdk-11-jdk -purge Updates are handled with the standard apt update and upgrade commands. Install OpenJDK 11 LTS – JRE sudo apt-get install openjdk-11-jre -y Install OpenJDK 11 LTS – JRE sudo apt-get install openjdk-11-jdk -y The tutorial will also demonstrate how to switch Java alternative default versions. In the following tutorial, you will learn how to install OpenJDK 11 LTS or better known as Java 11 LTS, on Ubuntu 22.04 LTS Jammy Jellyfish with the standard APT installation from Ubuntu’s repository along with the PPA version, which may suit some users better. Other differences are release schedules and other factors that come into play however, performance is the same. OpenJDK is an entirely free, open-source Java with a GNU General Public License, and Oracle JDK requires a commercial license under the Oracle Binary Code License Agreement. The difference between these two is licensing. The tutorial will look at installing the OpenJDK version instead of the default Oracle JDK. It is widely used for developing Java applications in laptops, data centers, game consoles, scientific supercomputers, cell phones, etc. Java is also fast, secure, and reliable, therefore. Java 8 is still the most widely-used version of Java.Java is a general-purpose, class-based, object-oriented multipurpose programming language that is popular due to the design of having lesser implementation dependencies, meaning that the compiled Java code can be run on all platforms that support Java without the need for recompilation. You should have successfully installed Java on your Ubuntu system. The output will look something like this: openjdk version "11.0.2" OpenJDK Runtime Environment (build 11.0.2+9-Ubuntu-3ubuntu118.04.3) OpenJDK 64-Bit Server VM (build 11.0.2+9-Ubuntu-3ubuntu118.04.3, mixed mode, sharing) Verify the installation, by running the following command which will print the Java version: $ java -version Once the package index is updated install the default Java OpenJDK package with: $ sudo apt install default-jdk Installing the Default OpenJDK (Java 11)įirst, update the apt package index with: $ sudo apt update We will see how to install default OpenJDK version available on Ubuntu 18.04. Java developer should install JDK, which also includes the development/debugging tools and libraries. If you only want to run Java programs, then you need JRE, which contains only the Java Runtime Environment. There are two different Java packages in Ubuntu repositories, Java Runtime Environment (JRE), and the Java Development Kit (JDK).
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