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.scene.text.Text; //
import javafx.scene.text.Font; //
import javafx.event.EventHandler;
import javafx.event.ActionEvent;
import javafx.geometry.Pos;
import javafx.scene.control.TextField;

public class HeiPerson extends Application {

    private TextField tekstfelt = null;

	@Override
	public void start (Stage stage) {

           VBox kulisser = new VBox(10);
           kulisser.setAlignment(Pos.CENTER);

           Text tekst = new Text("Skriv inn ditt navn");
           tekst.setFont(new Font(20));
           tekstfelt = new TextField();

           Button knapp = new Button("Faa hilsen");
           // koble sammen hva knappen skal gj?re
           knapp.setOnAction(new Knappebehandler());

           kulisser.getChildren().addAll(tekst, tekstfelt, knapp);

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


    class Knappebehandler implements EventHandler <ActionEvent> {

           @Override
           public void handle(ActionEvent e) {
               String navn = tekstfelt.getText();
               tekstfelt.setText("Hei " + navn + "!");
           }
    }
}