<dependency> <groupId>com.vaadin</groupId> <artifactId>vaadin-core</artifactId> <version>14.2.3</version> </dependency> import com.vaadin.flow.component.html.Div; import com.vaadin.flow.component.html.Label; public class MyComponent extends Div { public MyComponent(String message) { Label label = new Label(message); add(label); } } import com.vaadin.flow.component.html.Div; import com.vaadin.flow.component.orderedlayout.VerticalLayout; import com.vaadin.flow.router.Route; @Route("") public class MainView extends Div { public MainView() { VerticalLayout layout = new VerticalLayout(); MyComponent component = new MyComponent("Hello, World!"); layout.add(component); add(layout); } } import com.vaadin.flow.server.startup.ServletContextInitializer; public class Application implements ServletContextInitializer { public static void main(String[] args) { new SpringApplicationBuilder(Application.class) .run(args); } }


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