Application is an installation wizard for the JDK (Java Development Kit). It is a JavaFX-based GUI Windows Desktop Application that guides users through the process of downloading and installing the JDK, as well as setting the path environment variable.

• Wizard - A software wizard or setup assistant is a user interface that leads you through a sequence of small steps, like a dialog box to configure a program for the first time. A complex, rare, or unfamiliar task may be easier with a wizard that breaks the task into simpler pieces. But a wizard may be a barrier to deeper understanding, and a substitute for clearer design.

+ DOWNLOAD => jdk-20 installer download is successful
+ INSTALLATION => jdk installation is successful
+ PATH => setting the environmental path is successful

• When running jar application javafx-sdk-20.0.1 should be also installed in the local environment, after that from the terminal following command is required to start the application:

java --module-path "C:/Program Files/Java/javafx-sdk-20.0.1/lib" --add-modules javafx.controls,javafx.fxml -jar InstallerWizard-1.0-SNAPSHOT.jar

• launch.bat file should be placed in the same directory as the *.jar file. And instead of running jar file launch file can be run

• launch.bat script is the batch script written in the Windows command prompt sets up the necessary environment variables (JAVA_HOME, PATH, MODULE_PATH, MAIN_CLASS) and then uses the java command to run a Java application with the specified module path, classpath, and main class.

@echo off
set JAVA_HOME=C:\Program Files\Java\jdk-17.0.7
set PATH=%JAVA_HOME%\bin;%PATH%
set MODULE_PATH="C:\Program Files\Java\javafx-sdk-20.0.1\lib"
set MAIN_CLASS=com.example.instalwizard.InstalWizar

java --module-path %MODULE_PATH% --add-modules javafx.controls,javafx.fxml -cp InstalWizard-1.0-SNAPSHOT.jar %MAIN_CLASS%

• Oracle official documentation shows the basics of taking JavaFX application from code to deployment - Starting from JDK 7 update 6, JavaFX applications can be packaged as a platform-specific, self-contained application. These applications include all application resources, the Java and JavaFX runtimes, and a launcher, and they provide the same install and launch experience as native applications for the operating system.
• Package JavaFX applications in IntelliJ IDEA IDE - package JavaFX application by building the corresponding artifact (a Java archive). For JavaFX applications, IntelliJ IDEA provides a dedicated artifact type: JavaFx Application.
• JavaFX application packaging Stackoverflow - What is the best way to deploy JavaFX application, create JAR and self-contained applications and native installers?
• JavaFX 11 application deployment with JRE Stackoverflow - How to deploy a JavaFX 11 Desktop application with a JRE
• Self-Contained Application Packaging - This topic describes how to generate the package for a self-contained application. A self-contained application contains your Java or JavaFX application and the JRE needed to run the application.
• Export JavaFX 11, 15 or 17 projects into an executable jar file with IntelliJ [2022] - YouTube Video shows how to create a jar file from JavaFX 11 or above with IntelliJ IDEA.