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21:40:18 14/4/2024 - 3 views -

VPS, Linux

Install Java in Ubuntu

sudo apt update

If you in the first time install java, then run the following command:

java -version

The output in my case will be:

tai@tai:~$ java -version
Command 'java' not found, but can be installed with:
sudo apt install openjdk-11-jre-headless  # version 11.0.20.1+1-0ubuntu1~22.04, or
sudo apt install default-jre              # version 2:1.11-72build2
sudo apt install openjdk-17-jre-headless  # version 17.0.8.1+1~us1-0ubuntu1~22.04
sudo apt install openjdk-18-jre-headless  # version 18.0.2+9-2~22.04
sudo apt install openjdk-19-jre-headless  # version 19.0.2+7-0ubuntu3~22.04
sudo apt install openjdk-8-jre-headless   # version 8u382-ga-1~22.04.1

Currently, I use Ubuntu 22.4.2 and my project uses Java with version 21 so I will install openjdk-21

sudo apt install openjdk-21-jre-headless

Note: Some versions lower will not have JDK 21 (or others)

Finally, check if the installation is successful

java -version

My output:

tai@tai:~$ java -version
openjdk version "21.0.2" 2024-01-16
OpenJDK Runtime Environment (build 21.0.2+13-Ubuntu-122.04.1)
OpenJDK 64-Bit Server VM (build 21.0.2+13-Ubuntu-122.04.1, mixed mode, sharing)

Yeah, I succeeded