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[] Install OpenJDK 21 on Ubuntu 24 VM

Purpose

This article will focus on the installation of OpenJDK 21 on a headless Ubuntu 24 VM.

Prerequisites

List of prerequisites:

  • Sudo user
  • Ubuntu 24 LXC or VM

Instructions

Step 1: Install OpenJDK 21

First, update the system:

sudo apt update && sudo apt upgrade -y

Then, install OpenJDK 21:

sudo apt install openjdk-21-jdk -y

Step 2: Verify Installation

Finally, verify you have OpenJDK 21 installed by checking the version:

java -version

You should see output like this:

openjdk version "21" 2023-09-19
OpenJDK Runtime Environment (build 21+35-Ubuntu)
OpenJDK 64-Bit Server VM (build 21+35-Ubuntu, mixed mode)

 

 

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