java 21 linux install - Brave Search

install openjdk 21

askubuntu.com › questions › 1492571 › install-openjdk-21

For Ubuntu 22.04, you should be able to simply:
sudo apt install openjdk-21-jdk

It's in the Universe repository, so be sure you have that enabled.

It wasn't available yet when you asked the question, but it is now.

If you add a PPA or other non-Ubuntu version of OpenJDK, remember that it's likely to be incompatible with the (supported Ubuntu repository) Ubuntu package. So keep track of what you install; you might need to remove all of it.

Answer from user535733 on askubuntu.com

docs.redhat.com › en › documentation › red_hat_build_of_openjdk › 21 › html-single › installing_and_using_red_hat_build_of_openjdk_21_on_rhel › index

Installing and using Red Hat build of OpenJDK 21 on RHEL | Red Hat build of OpenJDK | 21 | Red Hat Documentation

Select the latest version of Red Hat build of OpenJDK 21 from the Version drop-down list, and then download the JRE archive for Linux to your local system. Extract the contents of the archive to a directory of your choice. ... When installed using this method, Java will only be available for ...

askubuntu.com › questions › 1492571 › install-openjdk-21

apt - install openjdk 21 - Ask Ubuntu

For Ubuntu 22.04, you should be able to simply:
sudo apt install openjdk-21-jdk

It's in the Universe repository, so be sure you have that enabled.

It wasn't available yet when you asked the question, but it is now.

If you add a PPA or other non-Ubuntu version of OpenJDK, remember that it's likely to be incompatible with the (supported Ubuntu repository) Ubuntu package. So keep track of what you install; you might need to remove all of it.

Discussions

How can i install Java 21 on Debian 12 without resorting to sid?

I recommend temurin jdk and they have their own packages. Zulu is also good. https://adoptium.net/installation/linux/ https://docs.azul.com/core/install/debian More on reddit.com

r/linux4noobs

26

25

July 15, 2024

Trying to install jdk 21. But it says already on the newest

It looks like you have both Java 21 and Java 17 installed. But the active version is Java 17. You can switch the active version with update-alternatives. You should check the doc of this command. But out of memory: sudo update-alternatives --config java This should open a dialog box that let you choose between the versions that are installed on your system. More on reddit.com

r/learnjava

11

6

November 4, 2024

How to install Java?

I think the first command will install the LTS version, which is currently 11. This has always been confusing on Debian distros. Are you just running java? Or are you looking to build new java code? Install the jdk if you want to build, not the jre. More on reddit.com

r/pop_os

4

5

February 25, 2020

Installing Java on Arch

https://wiki.archlinux.org/title/Java Should tell you basically anything you need. Also, you can use the community editions of intellij, I think they are available on the AUR. More on reddit.com

r/archlinux

8

4

July 31, 2021

Videos

Linux - How to Install Java (OpenJDK 21) - YouTube

December 18, 2025

How to install Oracle Java 21 on Pop! OS Linux 22.04. - YouTube

How To Install Java On Ubuntu 24.04 LTS (Linux) - YouTube

How To Install Oracle Java (JDK) On Ubuntu 24.04 LTS, Debian Linux ...

How to Install Java on Ubuntu and set JAVA_HOME (2025 UPDATE) #JDK ...

January 1, 2025

rosehosting.com › home › how to install java 21 on ubuntu 24.04

How to Install Java 21 on Ubuntu 24.04 | RoseHosting

May 8, 2024 - Once downloaded, you can install the package with the command below: ... root@host:~# java -version openjdk version "21.0.2" 2024-01-16 OpenJDK Runtime Environment (build 21.0.2+13-Ubuntu-2) OpenJDK 64-Bit Server VM (build 21.0.2+13-Ubuntu-2, ...

docs.oracle.com › en › java › javase › 21 › install › installation-jdk-linux-platforms.html

3 Installation of the JDK on Linux Platforms

July 15, 2025 - Anyone (not only root users) can install the archive file in any location having write access. ... The Java Development Kit files are installed into /usr/lib/jvm/jdk-<VERSION>-oracle-<ARCH> directory. For example, JDK 21 releases for x64 will be installed in /usr/lib/jvm/jdk-21-oracle-x64 directory.

linuxvox.com › blog › install-java-21-linux

Installing Java 21 on Linux: A Comprehensive Guide — linuxvox.com

For example, if using Red Hat, you may need to subscribe to the appropriate channels. For CentOS, you can use the dnf package manager: ... Download the Java 21 JDK from the official Oracle or OpenJDK website.

theserverside.com › blog › Coffee-Talk-Java-News-Stories-and-Opinions › How-do-I-install-Java-on-Ubuntu

How to install Java 21 on Ubuntu

January 1, 2025 - Install the JDK with the following command: sudo apt install default-jre Setting up default-jdk-headless (2:1.21) ... Setting up openjdk-21-jdk:amd64 (21.0.5+11-1ubuntu~24.04.1) ...

reddit.com › r/linux4noobs › how can i install java 21 on debian 12 without resorting to sid?

r/linux4noobs on Reddit: How can i install Java 21 on Debian 12 without resorting to sid?

July 15, 2024 -

EDIT: I've ended up installing Microsoft's OpenJDK 21. Had a nice instructions to setup and i didnt need to mess up my debian repositories to get the thing (only add MS one). Sorry die-hard Linux fans

I'm trying to install the JRE of Java 21 in my Debian 12 headless machine, for Minecraft server purposes.

Unfortunately i saw that the packages of 21 aren't available in stable repositories, only on sid (unstable). I don't want to add the whole sid repository to avoid instability and since the only package i want is this one.

So, is there any way to install Java 21 using either apt or a .deb file - without resorting to unpack a .tar.gz? Should i download the .deb on the website and try to install it via gdebi-core? I read that this isn't an advised thing to do due to dependencies and such...

For what it's worth, the binary release of Java is really one of the easiest things to install. It doesn't have any dependencies; just unpack it to a directory somewhere, set the JAVA_HOME environment variable to that location, and then add $JAVA_HOME/bin to your PATH environment variable. You're good to go.

I recommend temurin jdk and they have their own packages. Zulu is also good. https://adoptium.net/installation/linux/ https://docs.azul.com/core/install/debian

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oracle.com › java › technologies › downloads

Download the Latest Java LTS Free

Linux · macOS · Windows · Documentation Download · Online Documentation · Installation Instructions · Release Notes · Documentation License · JDK 25 Licensing Information User Manual (includes third-party licenses) Certified System Configurations · Readme · Java Value Engineering · JDK 21 binaries are free to use in production and free to redistribute, at no cost, under the Oracle No-Fee Terms and Conditions (NFTC).

javathinking.com › blog › jdk-21-install-linux

Installing JDK 21 on Linux: A Comprehensive Guide — javathinking.com

sudo update-alternatives --config java # Select the JDK 21 path from the list sudo update-alternatives --config javac # Repeat for javac · Cause: Incorrect file permissions on the JDK directory. Fix: Set ownership to root (system-wide) or your user (user-specific): sudo chown -R root:root /usr/lib/jvm/jdk-21.0.1+12 # System-wide # OR chown -R $USER:$USER ~/jdk21 # User-specific · Cause: SDKMAN! initialization not loaded in the shell. ... By following this guide, you’ll have JDK 21 installed and configured on your Linux system, ready for development or production use.

ComputingForGeeks

computingforgeeks.com › home › install java 21 (openjdk 21) on ubuntu 24.04|22.04|20.04

Install Java 21 (OpenJDK 21) on Ubuntu [Guide]

March 21, 2026 - Step-by-step guide to java 21 (OpenJDK 21) on Ubuntu 24.04|22.04|20.04. Includes commands, verification, and troubleshooting.

tecmint.com › home › debian › how to install java jdk 21 on debian 12

How to Install Java 21 (JDK) on Debian 12

June 27, 2024 - The easiest way to install Java 21 on Debian 12 is by using the apt package manager as a regular user with sudo privileges and updating the system packages as shown. ... If you want to check if Java is installed, run the command.

ubuntuhandbook.org › home › howtos › install oracle java jdk 21, 25, or 26 in ubuntu 24.04 | 22.04 | 20.04

Install Oracle Java JDK 21, 25, or 26 in Ubuntu 24.04 | 22.04 | 20.04 | UbuntuHandbook

sudo apt install ~/Downloads/jdk-21_linux-x64_bin.deb · Here replace 21 in command if you downloaded JDK 25 or 26. Or, just drag and drop the .deb package from your downloads folder into terminal to auto-insert path to that file. The .deb package include a post-install script that automatically ...

javawithus.com › home › faq › how to install java on linux (all distros)

How to Install Java on Linux (All Distros) | Java With Us

April 21, 2026 - Linux has the easiest Java install path of any OS — every major distribution ships OpenJDK in its standard package manager. One command gets you a working JDK. sudo apt update sudo apt install openjdk-21-jdk java -version

javadownload.org › blog › java-21-install

How to Install Java 21 (LTS): A Complete Guide for Windows, macOS, and Linux — javadownload.org

May 11, 2026 - The easiest way to install Java 21 on Ubuntu or Debian is through the official repositories: ... Download the Linux .tar.gz from a provider like Oracle or Adoptium.

docs.aws.amazon.com › corretto › corretto 21 user guide › amazon corretto 21 guide for linux › amazon corretto 21 installation instructions for debian-based, rpm-based and alpine linux distributions

Amazon Corretto 21 Installation Instructions for Debian-Based, RPM-Based and Alpine Linux Distributions - Amazon Corretto 21

After the repository is added, you can install Corretto 21 by running this command: ... Download the Linux .rpm file from the Downloads page. Install the downloaded .rpm file using yum localinstall. For example install x86_64 rpm using the following command: sudo yum localinstall java-21-ama...

docs.redhat.com › en › documentation › red_hat_build_of_openjdk › 21 › html › installing_and_using_red_hat_build_of_openjdk_21_on_rhel › installing-openjdk-on-rhel_openjdk

Chapter 2. Installing Red Hat build of OpenJDK 21 on Red Hat Enterprise Linux | Installing and using Red Hat build of OpenJDK 21 on RHEL | Red Hat build of OpenJDK | 21 | Red Hat Documentation

Select the latest version of Red Hat build of OpenJDK 21 from the Version drop-down list, and then download the JRE archive for Linux to your local system. Extract the contents of the archive to a directory of your choice. ... When installed using this method, Java will only be available for ...

linuxize.com › home › java › how to install java on ubuntu 24.04

How to Install Java on Ubuntu 24.04 | Linuxize

May 3, 2026 - Install Java 25, Java 21, and Oracle JDK on Ubuntu 24.04. This guide covers OpenJDK packages, default Java selection, and JAVA_HOME setup.

linuxvox.com › blog › install-java-21-ubuntu

Installing Java 21 on Ubuntu: A Comprehensive Guide — linuxvox.com

# Add the Adoptium GPG key wget ... apt install temurin - 21 - jdk · Download Java 21 Visit the Adoptium website and download the appropriate Java 21 JDK binary for Linux (usually in .tar.gz format)....

linuxtoday.com › home › blog

How to Install Java 21 on Debian 13 | Linux Today

June 26, 2025 - In this blog post, we will explain how to install Java 21 on Debian 13 OS in detail. Java is a high-level, object-oriented programming language with a syntax similar to C and C++.

Fabric Documentation

docs.fabricmc.net › players › installing-java › linux

Installing Java on Linux | Fabric Documentation

April 2, 2026 - A step-by-step guide on how to install Java on Linux.