Package Java How To Use And

You can see the list of available live templates using CtrlJ.

Along the way, you will get familiar with IntelliJ IDEA features for boosting your productivity as a developer: coding assistance and supplementary tools.

Watch the screencast and follow the step-by-step instructions below: Prepare a project Create a new Java 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.

In the New Project wizard, select Java from the list on the left.

To develop Java applications in IntelliJ IDEA, you need the Java SDK ( JDK ).

If the necessary JDK is already defined in IntelliJ IDEA, select it from the Project SDK list.

If you dont have the necessary JDK on your computer, select Download JDK.

In the next dialog, specify the JDK vendor (for example, OpenJDK), version, change the installation path if required, and click Download.

Were not going to use any additional libraries or frameworks for this tutorial, so click Next.

In this tutorial, were going to do everything from scratch, so click Next.

If necessary, change the default project location and click Finish.

Create a package and a class 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.

In the Project tool window, select the src folder, press AltInsert, and select Java Class.

In the Name field, type com.example.helloworld.HelloWorld and click OK.

IntelliJ IDEA creates the com.example.helloworld package and the HelloWorld class.

Together with the file, IntelliJ IDEA has automatically generated some contents for your class.

In this case, the IDE has inserted the package statement and the class declaration.

Depending on the type of the file that you create, the IDE inserts initial code and formatting that is expected to be in all files of that type.

Package Java How To Use And

For more information on how to use and configure templates, refer to File templates.

The Project tool window Alt1 displays the structure of your application and helps you browse the project.

In Java, theres a naming convention that you should follow when you name packages and classes.

Write the code Add the main() method using live templates Place the caret at the class declaration string after the opening bracket and press ShiftEnter.

In contrast to Enter, ShiftEnter starts a new line without breaking the current one.

Type main and select the template that inserts the main() method declaration.

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