Packages are used for grouping together classes that belong to the same category or provide similar functionality, for structuring and organizing large applications with hundreds of classes. Click Create.Īfter that, the IDE will create and load the new project for you. Leave the Add sample code option disabled as we're going to do everything from scratch in this tutorial. In the next dialog, specify the JDK vendor (for example, OpenJDK), version, change the installation path if required, and click Download. If you don't have the necessary JDK on your computer, select Download JDK. If the JDK is installed on your computer, but not defined in the IDE, select Add JDK and specify the path to the JDK home directory (for example, /Library/Java/JavaVirtualMachines/jdk-17.0.2.jdk). If the necessary JDK is already defined in IntelliJ IDEA, select it from the JDK list. To develop Java applications in IntelliJ IDEA, you need the Java SDK ( JDK). Make sure that the Java is selected in Language, and IntelliJ is selected in Build system. We're not going to work with version control systems in this tutorial, so leave the Create Git repository option disabled. Name the project (for example HelloWorld) and change the default location if necessary. In the New Project wizard, select New Project from the list on the left. Otherwise, from the main menu, select File | New Project. If the Welcome screen opens, click New Project.

In IntelliJ IDEA, a project helps you organize your source code, tests, libraries that you use, build instructions, and your personal settings in a single unit. Prepare a project Create a new Java project Along the way, you will get familiar with IntelliJ IDEA features for boosting your productivity as a developer: coding assistance and supplementary tools. In this tutorial, you will learn how to create, run, and package a simple Java application that prints Hello, World! to the system output.

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