How to Install Java JDK 18 on Ubuntu 22.04 / Ubuntu 20.04

Java 18 (Non-LTS) is the latest release for the Java SE platform. This newest release includes JDK 18, which provides an environment for developing applications using the Java programing language, testing, and running the Java programs.

Java JDK 18 is supported until September 2022. So, if you are looking for an LTS version, install Java JDK 17 on your Ubuntu system.

Here, we will see how to install Java JDK 18 on Ubuntu 22.04 / Ubuntu 20.04.

Install Java JDK on Ubuntu 22.04 / Ubuntu 20.04

Install OpenJDK 18 on Ubuntu 22.04 / 20.04

OpenJDK has separated packages for JDK (Java Development Kit) for developing Java applications and JRE (Java Runtime Environment) for running Java applications.

First, update the repository index.

sudo apt update

Then, install the OpenJDK or JRE package as per your requirements.

OpenJDK 18 JDK

sudo apt install -y openjdk-18-jdk

OpenJDK 18 JRE

sudo apt install -y openjdk-18-jre

Install Oracle JDK 18 On Ubuntu 22.04 / 20.04

First, install dependencies for Oracle JDK 18 installation.

sudo apt update

sudo apt install -y libc6-x32 libc6-i386

Then, download Oracle Java JDK 18 using the wget command in the terminal.

wget https://download.oracle.com/java/18/latest/jdk-18_linux-x64_bin.deb

Finally, install Oracle Java JDK 18 using the dpkg command.

sudo dpkg -i jdk-18_linux-x64_bin.deb

In some cases, you may need to install Oracle JDK 18 on the PATH location.

sudo update-alternatives --install /usr/bin/java java /usr/lib/jvm/jdk-18/bin/java 1

Verify Java JDK Installation

After installing JDK, use the below command to verify the version.

java -version

Output:

java version "18.0.1" 2022-04-19
Java(TM) SE Runtime Environment (build 18.0.1+10-24)
Java HotSpot(TM) 64-Bit Server VM (build 18.0.1+10-24, mixed mode, sharing

Conclusion

That’s All. I hope you have learned how to install Java JDK 18 on Ubuntu 22.04 / Ubuntu 20.04.