How To Install openjdk-8-jre-headless on Ubuntu 20.04
Introduction
In this tutorial we learn how to install openjdk-8-jre-headless on Ubuntu 20.04.
What is openjdk-8-jre-headless
openjdk-8-jre-headless is:
Minimal Java runtime - needed for executing non GUI Java programs, using Hotspot JIT.
The packages are built using the IcedTea build support and patches from the IcedTea project.
Package: openjdk-8-jre-headless Architecture: amd64 Version: 8u252-b09-1ubuntu1 Multi-Arch: same Priority: optional Section: universe/java Source: openjdk-8 Origin: Ubuntu Maintainer: OpenJDK Team [email protected] Bugs: https://bugs.launchpad.net/ubuntu/+filebug Installed-Size: 98326 Provides: java2-runtime-headless, java5-runtime-headless, java6-runtime-headless, java7-runtime-headless, java8-runtime-headless Depends: ca-certificates-java, java-common (>= 0.28), libcups2, liblcms2-2 (>= 2.2+git20110628), libjpeg8 (>= 8c), libfontconfig1, libnss3 (>= 2:3.17.1), util-linux (>= 2.26.2-4), libc6 (>= 2.29), libfreetype6 (>= 2.3.5), libgcc-s1 (>= 3.0), libpcsclite1 (>= 1.3.0), libstdc++6 (>= 4.1.1), libx11-6, libxext6, libxi6, libxrender1, libxtst6, zlib1g (>= 1:1.1.4) Suggests: libnss-mdns, fonts-dejavu-extra, fonts-ipafont-gothic, fonts-ipafont-mincho, fonts-wqy-microhei, fonts-wqy-zenhei, fonts-indic Breaks: ca-certificates-java (« 20160321~), oracle-java8-installer (« 8u77+8u77arm-1), tzdata-java Filename: pool/universe/o/openjdk-8/openjdk-8-jre-headless_8u252-b09-1ubuntu1_amd64.deb Size: 27512060 MD5sum: 569a2a3e86d744eeda25c59c59add5bc SHA1: 3e9a2605ba6c6304f46a47b357b9e4aafdf9cb78 SHA256: dd0217c5457d92f54c3e650cd1cce8c7b782ddebd1e7b7f83193722c2b78513f Homepage: http://openjdk.java.net/ Description-en: OpenJDK Java runtime, using Hotspot JIT (headless) Minimal Java runtime - needed for executing non GUI Java programs, using Hotspot JIT.
The packages are built using the IcedTea build support and patches from the IcedTea project.
There are three methods to install openjdk-8-jre-headless on Ubuntu 20.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install openjdk-8-jre-headless Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install openjdk-8-jre-headless using apt-get by running the following command:
sudo apt-get -y install openjdk-8-jre-headless
Install openjdk-8-jre-headless Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install openjdk-8-jre-headless using apt by running the following command:
sudo apt -y install openjdk-8-jre-headless
Install openjdk-8-jre-headless Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install openjdk-8-jre-headless using aptitude by running the following command:
sudo aptitude -y install openjdk-8-jre-headless
How To Uninstall openjdk-8-jre-headless on Ubuntu 20.04
To uninstall only the openjdk-8-jre-headless package we can use the following command:
sudo apt-get remove openjdk-8-jre-headless
Uninstall openjdk-8-jre-headless And Its Dependencies
To uninstall openjdk-8-jre-headless and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove openjdk-8-jre-headless
Remove openjdk-8-jre-headless Configurations and Data
To remove openjdk-8-jre-headless configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge openjdk-8-jre-headless
Remove openjdk-8-jre-headless configuration, data, and all of its dependencies
We can use the following command to remove openjdk-8-jre-headless configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge openjdk-8-jre-headless
References
Summary
In this tutorial we learn how to install openjdk-8-jre-headless package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.