> Markdown version of [Get Application Up and Running](https://vaadin.com/docs/v14/tools/designer/getting-started/designer-get-your-application-up-and-running). Section index: [llms.txt](https://vaadin.com/docs/v14/tools/llms.txt)

# <a id="designer.run.application"></a>Get the Application Up and Running

## <a id="add-route-to-main-view"></a>Adding the Route to the Main View

We previously created a `main-view` design with a companion Java file. Now we need to make the view accessible by adding the `@Route` annotation to the companion Java file.

1. Expand the `src/main/java/com.example.application` package and open `MainView.java`.

2. Add the `@Route("")` annotation at the beginning of the `MainView` class.

Your `MainView` class should now look like this:

`MainView.java`

```java
@Tag("main-view")
@JsModule("./src/views/main-view.ts")
@Route("")
public class MainView extends LitTemplate {

    public MainView() {
    }

}
```

The `@Route` annotation maps <http://localhost:8080/> to `MainView`.

## <a id="layout-finished-run-the-project"></a>Running the Project

Next, we run the project to see what the new layout will look like.

The easiest way to run the project for the first time is to:

1. Open the `Application` Java class in `src/main/java/com/example/application/Application.java`

2. Click the green play button next to the line which starts with `public class Application`.

This starts the application and automatically adds a run configuration for it in IntelliJ IDEA. Later, when you want to run or restart the application, you can build, run/restart, stop and debug the application from the toolbar:

When the build is finished and the application is running. Open `http://localhost:8080/` in your browser to see the result.

[Image: The application running in the browser.]

Proceed to the next chapter to connect your views to Java: [Connecting your Main View to Java](https://vaadin.com/docs/v14/tools/designer/getting-started/designer-connecting-your-main-view-to-java.md).

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