Use JavaFX and Ubuntu to develop a cross platform app

I am assuming Ubuntu 19.10. At first, we need to install the JVM and JRE.

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

Secondly, we need to set the environment variable JAVA_HOME:

sudo nano ~/.bashrc

Add this at the end of the file:

export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64

Run

source ~/.bashrc

Initiate gradle running

gradle -v

Make sure that the section marked with JVM shows your just installed JVM 1.8

Create a home-directory, move there and run

gradle init

Download Android Studio from here and extract it in your home directory (/home/ [username] /Android). Once extracted, set the ANDROID_HOME environment variable just like we did before. To get the necessary tools to build the Android build, execute

# *.nix./sdkmanager "platform-tools" "build-tools;25.0.3" "platforms;android-25" "extras;android;m2repository" "extras;google;m2repository"