import javafx.application.Application;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.layout.VBox;
import javafx.scene.control.Label;
import javafx.scene.control.Button;
import javafx.event.EventHandler;
import javafx.event.ActionEvent;
import javafx.geometry.Pos;
import javafx.scene.control.TextField;

public class HeiPerson extends Application {

    public TextField tekstfelt = null;
    public Label tekst = null;

	@Override
	public void start (Stage stage) {

        VBox vbox = new VBox();

        tekstfelt = new TextField("Skriv inn navnet ditt her...");
        Button knapp = new Button("Klikk for hilsen");

        Knappebehandler event = new Knappebehandler();
        knapp.setOnAction(event);
        
        tekst = new Label("hehe");

        vbox.getChildren().add(tekstfelt);
        vbox.getChildren().add(knapp);
        vbox.getChildren().add(tekst);

        stage.setScene(new Scene(vbox));
        stage.show();
	}


    class Knappebehandler implements EventHandler <ActionEvent> {

        public void handle(ActionEvent e){

             String navn = tekstfelt.getText();
             tekst.setText("Hei " + navn + ". Velkommen HEHE :)");
        }
    }
}