Java

1. Download archive with JDK from oracle website.

2. Copy it to special folder

    $ sudo mkdir /usr/java

    $ sudo cp ~/Downloads/jdk-8u281-linux-x64.tar.gz /usr/java

    $ rm ~/Downloads/jdk-8u281-linux-x64.tar.gz

3. Unpack the archive

    $ cd /usr/java

    $ sudo tar xvfz jdk-8u281-linux-x64.tar.gz

    $ sudo rm jdk-8u281-linux-x64.tar.gz

4. Add environment variable

    $ vim ~/.profile

    export JAVA_HOME=/usr/java/jdk1.8.0_281

    export PATH=${PATH}:${JAVA_HOME}/bin

5. Apply changes

    $ source ~/.profile

6. Check JAVA version

     $ java -version

java version "1.8.0_281"

Java(TM) SE Runtime Environment (build 1.8.0_281-b09)

Java HotSpot(TM) 64-Bit Server VM (build 25.281-b09, mixed mode)