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Requirements<\/a><\/span>Plain JavaFX Project<\/a><\/span>Maven JavaFX Project<\/a><\/span>Gradle JavaFX Project<\/a><\/span>Conclusion<\/a><\/span>References:<\/a><\/span><\/div><\/div>\n

JavaFX in IntelliJ IDE<\/figcaption><\/figure>\n<\/div>\n\n\n
This article is for the beginner who wants to get started developing JavaFX applications using Jetbrains' IntelliJ<\/a> IDE. The article will create three flavors of a HelloWorld JavaFX application as follows:<\/p>\n\n\n\n
\n
Plain - Create a new project from scratch using no build tools<\/li>\n\n\n\n
Maven - Create a new project using the Maven build tool<\/li>\n\n\n\n
Gradle - Create a new project using the Gradle build tool<\/li>\n<\/ul>\n\n\n\n
While this article may seem elementary for some, I believe it can help newcomers to the JavaFX platform avoid some pitfalls and really hit the ground running.<\/p>\n\n\n\n
Warning:<\/span> This tutorial will touch the basics on how to create a JavaFX project using the new Java Platform Module System (JPMS) since Java 9. There are redundant naming of directories that may look peculiar to you. This is in regards to the naming of a module directory and Java package namespace in the initial creation of the project. To learn more about Java Platform Module System's naming convention check out Java SE 9 - JPMS module naming<\/a> by Stephen Colebourne<\/a>. For a deep dive into modules check out Understanding Java 9 Modules<\/a> by Paul Deitel.<\/p>\n\n\n\n
New comers to the JavaFX platform that want things even more basic (fundamental) such as using the command line or terminal should look at \"A JavaFX App on ZuluFX in 60 Seconds<\/a>\".<\/p>\n\n\n\n
\n
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Next, you'll need to download and install the required software.<\/p>\n\n\n\n
Requirements<\/h2>\n\n\n\n
The following are requirements for this tutorial.<\/p>\n\n\n\n
\n
IntelliJ IDE <\/a> - https:\/\/www.jetbrains.com\/idea\/<\/a><\/li>\n\n\n\n
ZuluFX<\/a> - https:\/\/www.azul.com\/downloads\/zulu-community\/?package=jdk-fx<\/a> <\/li>\n<\/ul>\n\n\n\n
When downloading IntelliJ the free version is called the community edition.<\/p>\n\n\n\n
To see how to install ZuluFX please refer to the section '**Installing ZuluFX<\/strong>' at \"A JavaFX App on ZuluFX in 60 Seconds<\/a>\". <\/p>\n\n\n\n**
Plain JavaFX Project<\/h2>\n\n\n\n
The following steps will show you how to create a new JavaFX project from scratch (aka Plain old JavaFX Project). Usually this type of project is good for quick prototypes.<\/p>\n\n\n\n
**Step 1: <\/strong>Create a New Project <\/p>\n\n\n\n**
After installing and launching IntelliJ<\/strong> click on the '**New Project<\/strong>' option. In Figure 1 below are three options allowing you to create a Java project. <\/p>\n\n\n\n**
**$\"\"$** Figure 1. Three ways to create a Java project.<\/figcaption><\/figure>\n\n\n\n
*Note:<\/strong> If you've already completed the tutorial \"A JavaFX App on ZuluFX in 60 Seconds<\/a>\"<\/strong> then you could select the option '**Open or Import<\/strong>' and select the project directory and jump all the way down to step 15 executing the Hello World FX application.<\/p>\n\n\n\n**
**Step 2:<\/strong> Select Java as a project type <\/p>\n\n\n\n**
Select Java<\/strong> as the type of project to be created in the **New Project<\/strong> as shown in figure 2. <\/p>\n\n\n\n**
*Warning:<\/span><\/strong> You should notice in figure 2 on the left is the option for JavaFX, where it is NOT selected<\/strong>. I am purposefully avoiding the non-modular<\/strong> JavaFX application project convention (in favor of the modular JPMS convention<\/strong>). Non-modular projects are Java Apps prior to Java 9 where JavaFX applications only use the Java class path<\/strong> as opposed to the new **module path<\/strong>.<\/p>\n\n\n\n**
**$\"\"$**
Figure 2. Select Java as the project type.<\/figcaption><\/figure>\n\n\n\n
**Step 3: <\/strong>Choose your JDK (ZuluFX) <\/p>\n\n\n\n**
Click on the Add JDK<\/strong> option to locate the JDK's **Home<\/strong> directory. In Figure 3 it shows three options to select a JDK for this project (Download, Add and Detected SDKs. <\/p>\n\n\n\n**
$\"\"$ <\/figure>\n\n\n\n
After selecting the 'Add JDK<\/strong>' option locate the previously installed (ZuluFX) JDK's Home<\/strong> directory as shown in figure 4 below. Assuming you've already installed ZuluFX<\/strong> locally, you will select the Home<\/strong> directory and click the **Open<\/strong> button. In MacOS the parent directory will contain symlinks (Alias) to subdirectories under zulu-14.jdk. This makes it convenient for setting environment variables. <\/p>\n\n\n\n**
**$\"\"$**
Figure 4. ZuluFX Java JDK that includes JavaFX modules.<\/figcaption><\/figure>\n\n\n\n
**Step 4:<\/strong> Uncheck Create Project from template option, then Click Next<\/p>\n\n\n\n**
Step 5:<\/strong> Name your project HelloWorldFX<\/strong> and click **Finish<\/strong>. As a convention of mine I will create a projects directory under my home directory. On Windows you would have the following: `%HOMEDRIVE%%HOMEPATH%<\/code>\\projects<\/p>\n\n\n\n`**
Figure 5. Naming Project to be created in a projects directory.<\/figcaption><\/figure>\n\n\n\nStep 6:<\/strong> Change Project Language Level<\/strong>. In IntelliJ's menu options select File -> Project Structure<\/strong> as shown below. Select 14 (Preview)<\/strong> and click OK<\/strong>.<\/p>\n\n\n\nFigure 6. Project language level selection. 14 (Preview) should be selected.<\/figcaption><\/figure>\n\n\n\nStep 7: <\/strong>Unmark the 'src<\/strong>' directory as the source root as shown below in figure 7.<\/p>\n\n\n\n Figure 7. Unmark as Source Root. <\/figcaption><\/figure>\n\n\n\nStep 8:<\/strong> Create a module directory as 'com.mycompany.helloworld<\/strong>'. Right mouse button click the 'src<\/strong>' directory in the project (tree) as shown in Figure 8. New -> Directory<\/strong><\/p>\n\n\n\n Figure 8. Create a module directory using the reverse domain name convention.<\/figcaption><\/figure>\n\n\n\nFigure 9. The name of the new directory for the project module.<\/figcaption><\/figure>\n\n\n\nStep 9:<\/strong> Mark module directory as Root Source. Right mouse click 'com.mycompany.helloworld<\/strong>', Select Mark Directory as -> Sources Root<\/strong> <\/p>\n\n\n\n Figure 10. Marking the module directory as the Sources Root<\/strong>.<\/figcaption><\/figure>\n\n\n\n Step 10:<\/strong> Creating a module-info.java file definition. JPMS defines a module's dependencies and shared modules. Right mouse click the folder com.mycompany.helloworld<\/strong>, select New -> module-info.java<\/strong> <\/p>\n\n\n\n Figure 11. Creating a JPMS module-info.java file for the JavaFX application.<\/figcaption><\/figure>\n\n\n\nStep 11:<\/strong> Enter (copy & paste) the following module definition into the file.<\/p>\n\n\n\n module com.mycompany.helloworld {\n requires javafx.controls;\n exports com.mycompany.helloworld;\n}\n<\/pre>\n\n\n\nAfter hitting Ctrl + S to save the file you will encounter errors in the editor window where the module is referencing (exports) the com.mycompany.helloworld<\/strong> package which doesn't exist yet. So in the next step let's create the package namespace.<\/p>\n\n\n\n Step 12:<\/strong> Create the package name space of the Java application with the directory path of com\/mycompany\/helloworld<\/strong>. Right mouse click the folder com.mycompany.helloworld<\/strong>, <\/p>\n\n\n\n Figure 12. Creating directories of the package namespace.<\/figcaption><\/figure>\n\n\n\n After selecting the menu options you will enter the package name com.mycompany.helloworld<\/strong> and hit Enter<\/strong> as shown below:<\/p>\n\n\n\n Figure 13. package name com.mycompany.helloworld<\/strong><\/figcaption><\/figure>\n\n\n\nOnce created you should see the following folder created under the module name as shown in figure 14 below:<\/p>\n\n\n\n Figure 14. Package name space under module directory.<\/figcaption><\/figure>\n\n\n\nStep 13: <\/strong>Creating the main JavaFX Application file HelloWorld.java<\/strong> in the package (folder) com.mycompany.helloworld<\/strong> (beneath the module directory).<\/p>\n\n\n\n Figure 15. Creating the JavaFX main application Java file.<\/figcaption><\/figure>\n\n\n\nNext, the prompt will allow you to select the type of Java Class. Enter the name HelloWorld and select JavaFXApplication beneath denoting the Java Class type as shown below:<\/p>\n\n\n\n Figure 16. Name of Java class and the class type.<\/figcaption><\/figure>\n\n\n\nAfter hitting enter the file is created and displayed in the editor as shown in figure 17 below.<\/p>\n\n\n\n Figure 17. HelloWorld.java file generated by IntelliJ.<\/figcaption><\/figure>\n\n\n\nHere you'll notice two things, a generated JavaFX class and no errors from missing a package and class (dependent in the module-info.java file). Also, the generated JavaFX code's start()<\/strong> method body is empty. In the next step you'll just cut & paste the JavaFX application code into body of the method.<\/p>\n\n\n\n Step 14:<\/strong> Enter or cut & paste the following JavaFX code into the body of the start()<\/strong> method. <\/p>\n\n\n\n primaryStage.setTitle(\"Hello World\");\n Group root = new Group();\n Scene scene = new Scene(root, 300, 250);\n Button btn = new Button();\n btn.setLayoutX(100);\n btn.setLayoutY(80);\n btn.setText(\"Hello World\");\n btn.setOnAction( actionEvent ->\n System.out.println(\"Hello World\"));\n root.getChildren().add(btn);\n primaryStage.setScene(scene);\n primaryStage.show();<\/pre>\n\n\n\nThe final project in IntelliJ should look like the following:<\/p>\n\n\n\n Figure 18. The completed HelloWorldFX project in the IntelliJ IDE. <\/figcaption><\/figure>\n\n\n\nStep 15:<\/strong> Executing the HelloWorldFX application project. <\/p>\n\n\n\n Right mouse click the HelloWorld<\/strong> file in the Project tree view select Run<\/strong> as shown in figure 19<\/p>\n\n\n\n Figure 19. Run the HelloWorld application.<\/figcaption><\/figure>\n\n\n\nThe following is the output of running the HelloWorld application.<\/p>\n\n\n\n Figure 20. The output of the execution of HelloWorld JavaFX application.<\/figcaption><\/figure>\n\n\n\nMaven JavaFX Project<\/h2>\n\n\n\nThe following are steps to create a modular JavaFX application through IntelliJ as a Maven project. <\/p>\n\n\n\n Step 1: <\/strong>Create a New Project<\/p>\n\n\n\n Figure 21. New Project<\/figcaption><\/figure>\n\n\n\nStep 2:<\/strong> Select Maven as the project type and Choose Project SDK<\/p>\n\n\n\n *Note: It's preferred to use ZuluFX<\/strong> due to JavaFX modules are already bundled together with Java JDK. If you choose a JDK that doesn't include JavaFX you will need to add libraries through File -> Project Structure -> Libraries add to locate JavaFX lib directory.<\/p>\n\n\n\n Figure 22. Selecting Maven as a Project type and Selecting a JDK<\/figcaption><\/figure>\n\n\n\nAfter hitting Next, you'll set up your project and Maven settings.<\/p>\n\n\n\n Step 3: Name the project and create Maven coordinates<\/p>\n\n\n\n Name the project MavenHelloWorldFX<\/strong> and a project directory destination. <\/p>\n\n\n\n Next, you'll be specifying Maven coordinates GroupId, ArtifactId and Version as follows.<\/p>\n\n\n\n GroupId:<\/strong> com.mycompany.helloworld ArtifactId: <\/strong>helloworldfx Version:<\/strong> 1.0-SNAPSHOT<\/p>\n\n\n\n Figure 23. Naming the project and Maven coordinates<\/figcaption><\/figure>\n\n\n\nClick on Finish<\/strong>.<\/p>\n\n\n\n The project will output as shown below in Figure 24.<\/p>\n\n\n\n Figure 24. An empty Maven Java project.<\/figcaption><\/figure>\n\n\n\nStep 4: Add Plugins and dependencies into pom.xml <\/strong>file<\/p>\n\n\n\n Copy & Paste to replace the following pom.xml<\/strong> into the editor and Save.<\/p>\n\n\n\n <project xmlns=\"http:\/\/maven.apache.org\/POM\/4.0.0\" xmlns:xsi=\"http:\/\/www.w3.org\/2001\/XMLSchema-instance\"\n xsi:schemaLocation=\"http:\/\/maven.apache.org\/POM\/4.0.0 http:\/\/maven.apache.org\/maven-v4_0_0.xsd\">\n <modelVersion>4.0.0<\/modelVersion>\n <groupId>com.mycompany.helloworld<\/groupId>\n <artifactId>helloworldfx<\/artifactId>\n <version>1.0-SNAPSHOT<\/version>\n\n <properties>\n <project.build.sourceEncoding>UTF-8<\/project.build.sourceEncoding>\n <maven.compiler.release>14<\/maven.compiler.release>\n <javafx.version>14<\/javafx.version>\n <\/properties>\n <dependencies>\n <dependency>\n <groupId>org.openjfx<\/groupId>\n <artifactId>javafx-controls<\/artifactId>\n <version>${javafx.version}<\/version>\n <\/dependency>\n <\/dependencies>\n <build>\n <plugins>\n <plugin>\n <groupId>org.apache.maven.plugins<\/groupId>\n <artifactId>maven-compiler-plugin<\/artifactId>\n <version>3.8.1<\/version>\n <executions>\n <execution>\n <id>default-compile<\/id>\n <configuration>\n <release>${maven.compiler.release}<\/release>\n <\/configuration>\n <\/execution>\n <\/executions>\n <\/plugin>\n <plugin>\n <groupId>org.openjfx<\/groupId>\n <artifactId>javafx-maven-plugin<\/artifactId>\n <version>0.0.5<\/version>\n <configuration>\n <release>${maven.compiler.release}<\/release>\n <mainClass>com.mycompany.helloworld.HelloWorld<\/mainClass>\n <\/configuration>\n <\/plugin>\n <\/plugins>\n <\/build>\n<\/project><\/pre>\n\n\n\nStep 5: <\/strong>Project Settings -> Project - Set Language Level<\/p>\n\n\n\n Below you will want to ensure the Project SDK and Project language level is at least 11 or better. In figure 25 the language level was set to Java 14 (Preview). <\/p>\n\n\n\n Figure 25. Setting Language Level for Project<\/figcaption><\/figure>\n\n\n\nStep 6: Project Settings -> Modules - Set Language Level to 14 (Preview)<\/p>\n\n\n\n Select Modules under Project Settings. Make sure the helloworld project language level is in sync as shown below (fig 26). Then click OK.<\/p>\n\n\n\n Figure 26. Setting Language Level for Modules<\/figcaption><\/figure>\n\n\n\nStep 7: <\/strong>Create a module-info.java<\/strong> file<\/p>\n\n\n\n Right mouse click the java<\/strong> folder (Project pane), then select menu New -> module-info.java <\/strong><\/p>\n\n\n\n After the file is created you will want to use the definition in step 6.<\/p>\n\n\n\n Step 6:<\/strong> Copy and paste the following module definition to replace the generated one. Then hit Save<\/strong>.<\/p>\n\n\n\n module com.mycompany.helloworld {\n requires javafx.controls;\n exports com.mycompany.helloworld;\n}<\/pre>\n\n\n\nStep 6:<\/strong> Create a Java package name space com.mycompany.helloworld<\/strong>.<\/p>\n\n\n\n Figure 27. New Package name space folder<\/figcaption><\/figure>\n\n\n\nFigure 28. Entering the package name<\/figcaption><\/figure>\n\n\n\nAfter entering the package name the following is a created folder under the java directory as shown in figure 29 below.<\/p>\n\n\n\n Figure 29. Creating a new module-info.java file.<\/figcaption><\/figure>\n\n\n\nStep 7:<\/strong> Create the Main JavaFX app file<\/p>\n\n\n\n Right Mouse click the folder com.mycompany.helloworld <\/strong>(Project pane) to select the popup menu New -> Class<\/strong>, then type in HelloWorld<\/strong> as the name of the class as shown in figure 30 below. This will create an empty class. <\/p>\n\n\n\n Figure 30. Create a Class called HelloWorld<\/figcaption><\/figure>\n\n\n\nNext, copy & paste<\/strong> or type the following code to replace the code in the recently created HelloWorld.java<\/strong> file and Save<\/strong>.<\/p>\n\n\n\n package com.mycompany.helloworld;\n\nimport javafx.application.Application;\nimport javafx.scene.Group;\nimport javafx.scene.Scene;\nimport javafx.scene.control.Button;\nimport javafx.stage.Stage;\n\npublic class HelloWorld extends Application {\n\n public static void main(String[] args) {\n launch(args);\n }\n\n @Override\n public void start(Stage primaryStage) {\n primaryStage.setTitle(\"Hello World\");\n Group root = new Group();\n Scene scene = new Scene(root, 300, 250);\n Button btn = new Button();\n btn.setLayoutX(100);\n btn.setLayoutY(80);\n btn.setText(\"Hello World\");\n btn.setOnAction( actionEvent ->\n System.out.println(\"Hello World\"));\n root.getChildren().add(btn);\n primaryStage.setScene(scene);\n primaryStage.show();\n }\n}\n<\/pre>\n\n\n\nStep 8:<\/strong> Reload Maven Project <\/p>\n\n\n\n On the right pane there should be tabs to select Maven<\/strong>. Next, click on the reload tool bar button. This will pull down any plugins or dependencies specified in the pom.xml<\/strong>. <\/p>\n\n\n\n Figure 31. Maven tab to reload the project plugins and dependencies.<\/figcaption><\/figure>\n\n\n\nStep 9: Executing the HelloWorldFX<\/strong> application project.<\/p>\n\n\n\n Still on the Maven pane expand the Plugins<\/strong> folder, javafx<\/strong>, and double click on javafx:run<\/strong><\/p>\n\n\n\n Figure 32. Maven executed Hello World application<\/figcaption><\/figure>\n\n\n\nIf you want to run the application using the IDE's Run configuration you'll need to specify VM Options such as the following:<\/p>\n\n\n\n When using ZuluFX:<\/p>\n\n\n\n --add-modules javafx.controls<\/pre>\n\n\n\nFigure 33. VM Options<\/figcaption><\/figure>\n\n\n\nWhen using JavaFX as separate libraries such as from GluonHQ ($PATH_TO_FX<\/code>) and a mods<\/strong> directory (modules output directory):<\/p>\n\n\n\n --module-path $PATH_TO_FX:mods --add-modules javafx.controls<\/pre>\n\n\n\nGradle JavaFX Project<\/h2>\n\n\n\nBecause this article is getting way too long, I am only going to post the build.gradle<\/strong> file below. Because the file and directory structure of a gradle project is the same as a Maven project I trust you can simply go through creating the project in a similar manner and near the end click on the Gradle<\/strong> tab and the reload<\/strong> button to see the run<\/strong> task. <\/p>\n\n\n\n plugins {\n id 'application'\n id 'org.openjfx.javafxplugin' version '0.0.8'\n}\n\nrepositories {\n mavenCentral()\n}\n\njavafx {\n version = \"14\"\n modules = [ 'javafx.controls' ]\n}\n\nmainClassName = \"com.mycompany.helloworldfx\/com.mycompany.helloworldfx.HelloWorld\"\n<\/pre>\n\n\n\nConclusion<\/h2>\n\n\n\nWell there you have it, a Hello World JavaFX Application that was JPMS<\/strong> based and created using the popular IntelliJ IDE in three project types Plain<\/strong>, Maven<\/strong> and Gradle<\/strong>. <\/p>\n\n\n\n As you get familiar with how to code and execute your application your next step would be how placing check points and incrementally debug your application.<\/p>\n\n\n\n As always feel free to comment if you have questions or need any help. Happy coding!<\/p>\n\n\n\n References:<\/h2>\n\n\n\nUnderstanding Java 9 Modules by Paul Deitel - https:\/\/www.oracle.com\/corporate\/features\/understanding-java-9-modules.html<\/a> <\/p>\n\n\n\n Create a new JavaFX project -https:\/\/www.jetbrains.com\/help\/idea\/javafx.html<\/a> <\/p>\n\n\n\n OpenJFX.io - https:\/\/openjfx.io<\/a><\/p>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":" This article is for the beginner who wants to get started developing JavaFX applications using IntelliJ IDE. <\/p>\n While this article may seem elementary for some, I believe it can help newcomers to the JavaFX platform avoid some pitfalls and really hit the ground running.<\/p>\n","protected":false},"author":32,"featured_media":32843,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[221,193],"tags":[200,192,199,190,34,155,201],"class_list":["post-32842","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-idea","category-javafx","tag-duke","tag-helloworld","tag-intellij","tag-javafx","tag-jdk","tag-jdk14","tag-zulufx"],"yoast_head":"\nBeginning JavaFX Applications with IntelliJ IDE | foojay<\/title>\n<meta name=\"description\" content=\"For the beginner to developing JavaFX applications with IntelliJ IDE, this article can help to avoid pitfalls and hit the ground running.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/foojay.io\/today\/beginning-javafx-with-intellij\/\" \/>\n<meta property=\"og:locale\" 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Requirements<\/h2>\n\n\n\nThe following are requirements for this tutorial.<\/p>\n\n\n\n