To develop Java applications in IntelliJ IDEA, you need the Java SDK ( JDK).
Make sure that 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, go to File | New Project in the main menu. 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.