Worksheets are useful for writing pieces of code that don't actually make a software unit but should still be stored together in a project, such as educational or demo materials. Worksheets are project files: they are stored in project directories and tied to the project modules. To create a Kotlin scratch, click File | New | Scratch File and select the Kotlin type. Scratches are not tied to projects you can access and run all your scratches from any IntelliJ IDEA window on your OS.

Scratch files (or just scratches) let you create code drafts in the same IDE window as your project and run them on the fly. IntelliJ IDEA and Android Studio support Kotlin scratch files and worksheets. Check out these three handy ways to run Kotlin code instantly in different environments: However, if you want to quickly see how a function works or find an expression's value, there's no need to create a new project and build it. Kotlin code is typically organized into projects with which you work in an IDE, a text editor, or another tool.

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