Manage Java

// To install java
version=21 # Choose between 17 and 21
underversion=21.0.2 # Choose between 21.0.2 and 17.0.9
os=_linux

wget https://download.oracle.com/java/$version/latest/jdk-$version$os-x64_bin.tar.gz
gunzip jdk-$version$os-x64_bin.tar.gz
tar xvf jdk-$version$os-x64_bin.tar
mv jdk-$underversion /usr/local/java
ln -fs /usr/local/java/bin/java /usr/bin
ln -fs /usr/local/java/bin/javac /usr/bin
ln -fs /usr/local/java/bin/jar /usr/bin
rm -r *.tar

# To check java is installed correctly
java -version

// To uninstall java
rm -r /usr/local/java
rm -r /usr/bin/java
rm -r /usr/bin/javac
rm -r /usr/bin/jar