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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

 

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