Install Java on your VPS

There are plenty of tutorials on the Internet to install Java on a Linux system but here we gather them all.

Introduction

Java is not necessarily installed by default on Linux systems, to check this just run the command java -version if Java is not installed the system will tell you something like java: command not found otherwise it will show you the version installed and use by default. For example Java 8 will be noted 1.8.0, Java 11 1.11.0 or 11.0, etc.

Installation

Java 8 (up to Minecraft 1.16)

Debian 9

sudo apt update && sudo apt install openjdk-8-jre

Debian 10

sudo apt update &&
sudo apt install -y apt-transport-https ca-certificates wget dirmngr gnupg software-properties-common &&
wget -qO - https://adoptopenjdk.jfrog.io/adoptopenjdk/api/gpg/key/public | sudo apt-key add - &&
sudo add-apt-repository --yes https://adoptopenjdk.jfrog.io/adoptopenjdk/deb/ &&
sudo apt update && sudo apt install adoptopenjdk-8-hotspot

Ubuntu 18.04 & 20.04

sudo apt update && sudo apt install openjdk-8-jre

Java 11

Debian 9 & 10

sudo apt update && sudo apt install openjdk-11-jre

Ubuntu 18.04 & 20.04

sudo apt update && sudo apt install openjdk-11-jre

Java 16 (since Minecraft 1.17)

Debian 9

sudo apt install -y wget apt-transport-https gnupg && 
curl https://adoptopenjdk.jfrog.io/adoptopenjdk/api/gpg/key/public --output adoptopenjdk.gpg &&
gpg --no-default-keyring --keyring ./adoptopenjdk-keyring.gpg --import adoptopenjdk.gpg &&
gpg --no-default-keyring --keyring ./adoptopenjdk-keyring.gpg --export --output adoptopenjdk-archive-keyring.gpg && 
rm adoptopenjdk-keyring.gpg adoptopenjdk.gpg &&
sudo mv adoptopenjdk-archive-keyring.gpg /usr/share/keyrings &&
echo "deb [signed-by=/usr/share/keyrings/adoptopenjdk-archive-keyring.gpg] https://adoptopenjdk.jfrog.io/adoptopenjdk/deb stretch main" | sudo tee /etc/apt/sources.list.d/adoptopenjdk.list &&
sudo apt update &&
sudo apt install adoptopenjdk-16-openj9-jre

Debian 10

sudo apt install -y wget apt-transport-https gnupg && 
curl https://adoptopenjdk.jfrog.io/adoptopenjdk/api/gpg/key/public --output adoptopenjdk.gpg &&
gpg --no-default-keyring --keyring ./adoptopenjdk-keyring.gpg --import adoptopenjdk.gpg &&
gpg --no-default-keyring --keyring ./adoptopenjdk-keyring.gpg --export --output adoptopenjdk-archive-keyring.gpg && 
rm adoptopenjdk-keyring.gpg adoptopenjdk.gpg &&
sudo mv adoptopenjdk-archive-keyring.gpg /usr/share/keyrings &&
echo "deb [signed-by=/usr/share/keyrings/adoptopenjdk-archive-keyring.gpg] https://adoptopenjdk.jfrog.io/adoptopenjdk/deb buster main" | sudo tee /etc/apt/sources.list.d/adoptopenjdk.list &&
sudo apt update &&
sudo apt install adoptopenjdk-16-openj9-jre

Ubuntu 18.04

sudo apt install -y wget apt-transport-https gnupg && 
curl https://adoptopenjdk.jfrog.io/adoptopenjdk/api/gpg/key/public --output adoptopenjdk.gpg &&
gpg --no-default-keyring --keyring ./adoptopenjdk-keyring.gpg --import adoptopenjdk.gpg &&
gpg --no-default-keyring --keyring ./adoptopenjdk-keyring.gpg --export --output adoptopenjdk-archive-keyring.gpg && 
rm adoptopenjdk-keyring.gpg adoptopenjdk.gpg &&
sudo mv adoptopenjdk-archive-keyring.gpg /usr/share/keyrings &&
echo "deb [signed-by=/usr/share/keyrings/adoptopenjdk-archive-keyring.gpg] https://adoptopenjdk.jfrog.io/adoptopenjdk/deb bionic main" | sudo tee /etc/apt/sources.list.d/adoptopenjdk.list &&
sudo apt update &&
sudo apt install adoptopenjdk-16-openj9-jre

Ubuntu 20.04

sudo apt install -y wget apt-transport-https gnupg && 
curl https://adoptopenjdk.jfrog.io/adoptopenjdk/api/gpg/key/public --output adoptopenjdk.gpg &&
gpg --no-default-keyring --keyring ./adoptopenjdk-keyring.gpg --import adoptopenjdk.gpg &&
gpg --no-default-keyring --keyring ./adoptopenjdk-keyring.gpg --export --output adoptopenjdk-archive-keyring.gpg && 
rm adoptopenjdk-keyring.gpg adoptopenjdk.gpg &&
sudo mv adoptopenjdk-archive-keyring.gpg /usr/share/keyrings &&
echo "deb [signed-by=/usr/share/keyrings/adoptopenjdk-archive-keyring.gpg] https://adoptopenjdk.jfrog.io/adoptopenjdk/deb focal main" | sudo tee /etc/apt/sources.list.d/adoptopenjdk.list &&
sudo apt update &&
sudo apt install adoptopenjdk-16-openj9-jre